SG6S2N-E-U1-Q1 Copy

Question 1 of 49

1 point(s)

The most common simple machines are …………………..

levers.

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bicycles.

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car machines.

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All of the above.

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Question 2 of 49

1 point(s)

The levers rotates around a fixed point called ………………

resistance force.

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fulcrum.

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effort force.

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a rigid bar.

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Question 3 of 49

1 point(s)

Levers were first described in 260 B.C by the Greek scientist ……………..

Archimedes.

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El-Hassan Ibn EL-Haitham.

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Newton.

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Mendel.

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Question 4 of 49

1 point(s)

…………………. is a rigid bar that rotates around fulcrum, and is affected by an effort force and a resistance force.

Lever

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Solution

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Mixture

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Friction force

Correct Incorrect Correct answer

Question 5 of 49

1 point(s)

The ………………… force is exerted by a person to equilibrate the resistance.

a). fulcrum

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b). effort

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c). friction

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d). (a) and (B)

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Question 6 of 49

1 point(s)

A lever consists of ………………

resistance force (R).

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fulcrum (O).

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effort force (F).

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All of the above.

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Question 7 of 49

1 point(s)

All the following are from the importance of levers except …………………..

increasing speed.

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increasing force.

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increasing size.

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accuracy in performance.

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Question 8 of 49

1 point(s)

……………. is a lever that uses a small force to make a great effort.

Crowbar

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Hockey bat

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Ice holder

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Manual broom

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Question 9 of 49

1 point(s)

…………….. increases the speed of objects that we affect them.

Manual broom

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Seesaw

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Hockey bat

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Coal holder

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Question 10 of 49

1 point(s)

Tweezers are used to ……………………

move a heavy load.

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increase the speed of the ball.

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Pick up very small objects.

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hold cold objects.

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Question 11 of 49

1 point(s)

Which of the following levers is used to avoid dangers?

Coal holder.

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Scissors.

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Seesaw.

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Manual broom.

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Question 12 of 49

1 point(s)

Which of the levers derived is used to enlarge the distance?……………

The tweezer.

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Crowbar.

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The broom.

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Coal holder.

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Question 13 of 49

1 point(s)

Which of the following levers moves force from one place to another?………………..

Wheelbarrow.

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Nutcracker.

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Manual broom.

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Pincers.

Correct Incorrect Correct answer

Question 14 of 49

1 point(s)

The levers that have the fixed point (fulcrum) between the resistance force and effort force are ……………………..

first class levers.

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second class levers.

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third class levers.

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fourth class levers.

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Question 15 of 49

1 point(s)

From the first class levers is ………………….

nutcracker.

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sweet holder.

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scissors.

Correct Incorrect Correct answer

manual broom.

Correct Incorrect Correct answer

Question 16 of 49

1 point(s)

…………………….. have the resistance force between the effort force and fulcrum.

First class levers

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Second class levers

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Third class levers

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All of the above.

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Question 17 of 49

1 point(s)

Soda water opener is a …………………….

first class lever.

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second class lever.

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third class lever.

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fourth class lever.

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Question 18 of 49

1 point(s)

The first class lever differs from the second class lever in ……………….

a). the absence of the effort force.

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b). the presence of a fixed point.

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c). the position of fulcrum.

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d). (a) and (b).

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Question 19 of 49

1 point(s)

………………….. are from the second class levers.

Nutcracker, wheelbarrow and bottle opener.

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Sweet holder, wheelbarrow and soda water opener.

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Tweezers, hockey bat and manual broom.

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Paddle, pincers and scissors.

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Question 20 of 49

1 point(s)

Which of the following is a second class lever? ………………..

Sweet holder.

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Wheelbarrow.

Correct Incorrect Correct answer

Seesaw.

Correct Incorrect Correct answer

Hockey bat.

Correct Incorrect Correct answer

Question 21 of 49

1 point(s)

………………….. have the effort force between the resistance force and fulcrum.

First class levers.

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Second class levers.

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Third class levers.

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Fourth class levers.

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Question 22 of 49

1 point(s)

The effort force is between the resistance and fulcrum in ………………

nutcracker.

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scissors.

Correct Incorrect Correct answer

sweet holder

Correct Incorrect Correct answer

crowbar.

Correct Incorrect Correct answer

Question 23 of 49

1 point(s)

All the following are from the third class levers except …………………

wheelbarrow.

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fishing tool.

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manual broom.

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sweet holder.

Correct Incorrect Correct answer

Question 24 of 49

1 point(s)

All the following are from the first class levers except …………………..

the crowbar.

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the scissors.

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nutcrackers.

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the seesaw.

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Question 25 of 49

1 point(s)

Crowbar is considered from ………… class levers.

first

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second

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third

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fourth

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Question 26 of 49

1 point(s)

Levers are considered one of the first simple machines which man invented in the past.

True.

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False.

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Question 27 of 49

1 point(s)

The lever is a rigid bar that rotates around a fixed point called resistance.

True.

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False.

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Question 28 of 49

1 point(s)

Any lever consists of a resistance force and an effort force only.

True.

Correct Incorrect Correct answer

False.

Correct Incorrect Correct answer

Question 29 of 49

1 point(s)

The effort force is a force that is exerted by a person to equilibrate the resistance.

True.

Correct Incorrect Correct answer

False.

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Question 30 of 49

1 point(s)

The crowbar is an increasing force lever.

True.

Correct Incorrect Correct answer

False.

Correct Incorrect Correct answer

Question 31 of 49

1 point(s)

Levers make tasks easier.

True.

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False.

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Question 32 of 49

1 point(s)

Wheelbarrow and nutcracker save the exerted effort.

True.

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False.

Correct Incorrect Correct answer

Question 33 of 49

1 point(s)

Water pump is a kind of levers which pick up the very small objects.

True.

Correct Incorrect Correct answer

False.

Correct Incorrect Correct answer

Question 34 of 49

1 point(s)

In the first class levers, the resistance is between the effort force and fulcrum.

True.

Correct Incorrect Correct answer

False.

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Question 35 of 49

1 point(s)

from the function of levers is to increase force.

True.

Correct Incorrect Correct answer

False.

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Question 36 of 49

1 point(s)

Among the functions of levers is decrease distance.

True.

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False.

Correct Incorrect Correct answer

Question 37 of 49

1 point(s)

The fulcrum in scissors lies between force and resistance.

True.

Correct Incorrect Correct answer

False.

Correct Incorrect Correct answer

Question 38 of 49

1 point(s)

The crowbar is an example of the first class levers.

True.

Correct Incorrect Correct answer

False.

Correct Incorrect Correct answer

Question 39 of 49

1 point(s)

Pliers are composed of two first class levers.

True.

Correct Incorrect Correct answer

False.

Correct Incorrect Correct answer

Question 40 of 49

1 point(s)

Nail clippers have fulcrum between the effort force and resistance.

True.

Correct Incorrect Correct answer

False.

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Question 41 of 49

1 point(s)

Complete the following statement:

Levers were first described in 260 B.C by the Greek scientist Fill in the blank 1 of 1 .

Question 42 of 49

1 point(s)

Complete the following statement:

The lever is a Fill in the blank 1 of 1 that rotates around a fixed point called fulcrum.

Question 43 of 49

1 point(s)

Complete the following statement:

Fill in the blank 1 of 1 is resulted from the body that we want to move.

Question 44 of 49

1 point(s)

Complete the following statement:

Fill in the blank 1 of 1 is exerted by a person to equilibrate the resistance force.

Question 45 of 49

1 point(s)

Complete the following statement:

The fixed point, where the rigid bar rotates on is called Fill in the blank 1 of 1 .

Question 46 of 49

1 point(s)

Complete the following statement:

Fill in the blank 1 of 1 is an increasing speed lever.

Question 47 of 49

1 point(s)

Complete the following statement:

Fill in the blank 1 of 1 is a lever that moves force from one place to another place without bending.

Question 48 of 49

1 point(s)

Complete the following statement:

The scissors are example of theFill in the blank 1 of 1 class levers.

Question 49 of 49

1 point(s)

Complete the following statement:

Manual broom is an example of Fill in the blank 1 of 1 class levers.

SG6S2N-E-U1-Q1 Copy

SG6S2N-E-U1-Q1 Copy

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