Quiz about FORCE WORK & ENERGY

Question 1

Identify the simple machine in the given image.

Accepted Answer

Inclined Plane

Answer

Wedge

Answer

Wheel & Axle

Answer

Pulley

Question 2

The 2 simple machines being used in the image are

Accepted Answer

wedge, lever

Answer

wheel & axle, inclined plane

Answer

wedge, pulley

Answer

inclined plane, lever

Question 3

The energy conversation from 2 to 1 is

Accepted Answer

potential energy to kinetic energy

Answer

chemical energy to potential energy

Answer

kinetic energy to potential energy

Answer

kine energy to chemical energy

Question 4

Which of the following is/are non-contact force(s)?

Accepted Answer

All of these

Answer

Elastic Force

Answer

Gravitational Force

Answer

Magnetic Force

Question 5

In which of the following work is NOT done?

Accepted Answer

All of these

Answer

A.

Answer

B.

Answer

C.

Question 6

State True or False.

Gravity supports in climbing hills.
Shadow is the longest at noon.
Shadows are light coloured at nights.

Accepted Answer

F, F, F

Answer

T, F, T

Answer

T, T, T

Answer

F, F, T

Question 7

Which of the following is/are translucent?

Accepted Answer

All of these

Answer

Butter paper

Answer

Tracing paper

Answer

Frosted glass

Question 8

Which thing is NOT required to form a shadow?

Accepted Answer

Transparent object

Answer

Screen

Answer

Light Source

Answer

Opaque object

Question 9

State True or False.

Sound is a form of energy.
Sound travels in straight line.
Translucent objects form a dark shadow.

Accepted Answer

T, F, F

Answer

T, F, T

Answer

T, T, F

Answer

F, F, F

Question 10

Which of the following is an unpleasant sound?

Accepted Answer

Crying of child

Answer

Chirping of birds

Answer

Soft music

Answer

Singer singing in tune

Question 11

Which of the following is a luminous object?

Accepted Answer

Star

Answer

Moon

Answer

Earth

Answer

Asteroid

Question 12

When is a shadow formed?

Accepted Answer

When an opaque object blocks the path of light

Answer

When the object is transparent

Answer

When the opaque object is at the back of light source

Answer

When there is no screen

Question 13

Read both statements carefully.

Sound is produced by reflection of sound waves.
Sound travels the fastest in gases.

Accepted Answer

Both statements are false.

Answer

Both statements are true.

Answer

First statement is true & the second one is false.

Answer

First statement is false & the second one is true.

Question 14

Which of the following is NOT the effect of force?

Accepted Answer

Change in the colour of an object.

Answer

Change in the shape of an object.

Answer

Change in the direction of an object.

Answer

Change in the speed of an object.

Question 15

State True or False.

Elastic Force is a contact force. Sound travels the slowest in vacuum.

Accepted Answer

F, F

Answer

F, T

Answer

T, T

Answer

T, F

Question 16

Which force OPPOSES motion?

Accepted Answer

Frictional Force

Answer

Gravitational Force

Answer

Elastic Force

Answer

Magnetic Force

Question 17

Which of the following is a non-luminous object?

Accepted Answer

None of these

Answer

A.

Answer

B.

Answer

C.

Question 18

State True or False.

A shadow is always black in colour.
Translucent objects make dark shadows.
Shadow is the shortest at breakfast time.

Accepted Answer

T, F, F

Answer

F, F, T

Answer

T, T, F

Answer

F, T, F

Question 19

Which of the following is NOT an opaque object?

Accepted Answer

Window screen

Answer

Mirror

Answer

Brick

Answer

None of these

Question 20

Sound travels the slowest in ______________.

Accepted Answer

Gases

Answer

Solids

Answer

Liquids

Answer

Vacuum

Question 21

Read both the statements carefully.

We are not able to see objects because light travels in a straight line.
Echo is produced when an object reflects the sound waves.

Accepted Answer

First statement is false & the second statement is true.

Answer

Both statements are false.

Answer

Both statements are true.

Answer

First statement is true & the second statement is false.

Question 22

What is the direction of gravitational force?

Accepted Answer

Downwards

Answer

Upwards

Answer

Sideways

Answer

None of these

Question 23

We are able to walk due to __________ force.

Accepted Answer

Both gravitational & frictional force

Answer

Gravitational

Answer

Magnetic

Answer

Frictional

Question 24

How can you reduce your effort in 1st class lever?

Accepted Answer

Both A & C

Answer

By reducing the distance between load & fulcrum

Answer

By increasing the distance between load & fulcrum

Answer

By increasing the distance between effort & fulcrum

Question 25

Anita picked 2 sacks-one containing 1 kg of stones & another containing 1kg of feathers. In the lifting of which sack will she have to apply more force?

Accepted Answer

Both will require same force

Answer

1 kg of stones

Answer

1 kg of feathers

Answer

None of these

Question 26

Identify the incorrect group.

Accepted Answer

Wheelbarrow, scissors, skateboard

Answer

Axe, razor, knife

Answer

Bicycle pedal, screwdriver, steering wheel

Answer

None of these

Question 27

State True or False.

Hydro electricity is generated from wind.
Geothermal energy comes from the burning of petroleum.
Machine parts need to be oiled regularly for increasing friction.

Accepted Answer

F, F, F

Answer

T, T, F

Answer

T, F, T

Answer

F, F, T

Question 28

Look at the image carefully & answer the following.

Accepted Answer

Force acting from downward direction is buoyant force

Answer

Force acting from upward direction is buoyant force

Answer

Force acting from downward direction is gravitational force

Answer

Force acting from upward direction is frictional force

Question 29

Echo is produced by ________

Accepted Answer

None of these

Answer

reflection of light waves

Answer

vibration of sound waves

Answer

vibration of light waves

Question 30

Select the incorrect statement.

Accepted Answer

Nutcracker is a first class lever

Answer

Flagpole is a fixed pulley

Answer

Screwdriver is a wheel & axle

Answer

None of these

Question 31

Which of the following are 3rd class levers?

Accepted Answer

Tweezer, stapler

Answer

Stapler, crowbar

Answer

Fishing rod, hammer

Answer

Tongs, ramp

Question 32

Which of the following do not have chemical energy stored in them?

Accepted Answer

None of these

Answer

Batteries

Answer

Fossil fuels

Answer

Plants

Question 33

Which form of energy has the lowest energy?

Accepted Answer

Sound energy

Answer

Heat energy

Answer

Light energy

Answer

Chemical energy

Question 34

Select the correct statement.

Accepted Answer

Chemical energy is stored in coal

Answer

Potential energy of an object is more at the 2nd floor as compared to 3rd floor

Answer

Decibel is used to measure light

Answer

All of these

Question 35

Bottle cap is/an ___________.

Accepted Answer

screw

Answer

inclined plane

Answer

wedge

Answer

wheel & axle

Question 36

Claw hammer is __________.

Accepted Answer

1st class lever

Answer

2nd class lever

Answer

3rd class lever

Answer

None of these

Question 37

Rohan was trying to lift a stone with a 1st class lever.

His effort moved closer to the fulcrum. Then he shifted the load away from the fulcrum.

Select the incorrect option.

Accepted Answer

In both cases, his effort will reduce

Answer

In the 1st case, his effort will increase

Answer

In the 2nd case, his effort will increase

Answer

All of these

Question 38

Which are the 2 types of mechanical energy?

Accepted Answer

Kinetic & Potential

Answer

Kinetic & Muscular

Answer

Potential & Electrical

Answer

Potential & Elastic

FORCE WORK & ENERGY

40 questions

Identify the simple machine in the given image.

The 2 simple machines being used in the image are

The energy conversation from 2 to 1 is

Which of the following is/are non-contact force(s)?

In which of the following work is NOT done?

State True or False.
Gravity supports in climbing hills.
Shadow is the longest at noon.
Shadows are light coloured at nights.

Which of the following is/are translucent?

Which thing is NOT required to form a shadow?

State True or False.
Sound is a form of energy.
Sound travels in straight line.
Translucent objects form a dark shadow.

Which of the following is an unpleasant sound?

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FORCE WORK & ENERGY

40 questions

Identify the simple machine in the given image.

The 2 simple machines being used in the image are

The energy conversation from 2 to 1 is

Which of the following is/are non-contact force(s)?

In which of the following work is NOT done?

State True or False.Gravity supports in climbing hills. Shadow is the longest at noon. Shadows are light coloured at nights.

Which of the following is/are translucent?

Which thing is NOT required to form a shadow?

State True or False.Sound is a form of energy. Sound travels in straight line.Translucent objects form a dark shadow.

Which of the following is an unpleasant sound?

Create a free account and access millions of resources

Similar Resources on Wayground

Popular Resources on Wayground

Discover more resources for Science

State True or False.
Gravity supports in climbing hills.
Shadow is the longest at noon.
Shadows are light coloured at nights.

State True or False.
Sound is a form of energy.
Sound travels in straight line.
Translucent objects form a dark shadow.