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Worksheets

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Total questions: 49

Worksheet time: 25mins

Name
Class
Date
1.

A. GRAVITY — Direction: Choose the letter of the correct answer. What force pulls objects toward the Earth?

a)

Magnetism

b)

Gravity

c)

Friction

d)

Electricity

2.

A. GRAVITY — Direction: Choose the letter of the correct answer. Why do objects fall when dropped?

a)

Because of air

b)

Because of gravity

c)

Because of friction

d)

Because of motion

3.

A. GRAVITY — Direction: Choose the letter of the correct answer. Which object will fall faster if dropped at the same time?

a)

Paper

b)

Stone

c)

Both fall at the same speed

d)

Feather

4.

A. GRAVITY — Direction: Choose the letter of the correct answer. Gravity is strongest when the object is ____.

a)

Far from Earth

b)

Near the Earth

c)

In space

d)

Floating

5.

A. GRAVITY — Direction: Choose the letter of the correct answer. What happens to gravity as distance increases?

a)

It becomes stronger

b)

It disappears

c)

It becomes weaker

d)

It stays the same

6.

A. GRAVITY — Direction: Choose the letter of the correct answer. Why does the Moon not fall to Earth?

a)

It has no gravity

b)

It is too light

c)

It is moving while being pulled by gravity

d)

It is very far

7.

A. GRAVITY — Direction: Choose the letter of the correct answer. Which planet has stronger gravity than Earth?

a)

Mars

b)

Mercury

c)

Jupiter

d)

Moon

8.

A. GRAVITY — Direction: Choose the letter of the correct answer. What would happen if there were no gravity?

a)

Objects would stay on the ground

b)

Objects would float away

c)

People would be heavier

d)

Rain would fall faster

9.

A. GRAVITY — Direction: Choose the letter of the correct answer. Gravity affects ____.

a)

Only humans

b)

Only large objects

c)

Everything with mass

d)

Only objects on Earth

10.

Which shows the effect of gravity?

a)

A balloon floating

b)

A book falling from the table

c)

A fan spinning

d)

A magnet attracting iron

11.

Friction is a force that _____.

a)

Pulls objects up

b)

Slows down motion

c)

Makes objects heavier

d)

Attracts objects

12.

Which surface produces the most friction?

a)

Ice

b)

Glass

c)

Rough sandpaper

d)

Smooth tile

13.

Why do we use oil in machines?

a)

To increase friction

b)

To remove gravity

c)

To decrease friction

d)

To make machines heavier

14.

Friction is useful because it helps us _____.

a)

Fly

b)

Slip

c)

Walk without falling

d)

Float

15.

Which activity shows friction?

a)

Jumping

b)

Writing with a pencil

c)

Sleeping

d)

Breathing

16.

Friction between car tires and the road helps the car to _____.

a)

Float

b)

Stop

c)

Fly

d)

Melt

17.

Which has less friction?

a)

Rough road

b)

Smooth floor

c)

Carpet

d)

Sand

18.

What happens when friction is too much in machines?

a)

Machine works better

b)

Machine overheats

c)

Machine flies

d)

Machine grows bigger

19.

Why is it hard to slide a heavy box on a rough floor?

a)

Gravity is weak

b)

There is too much air

c)

Friction is strong

d)

The box is light

20.

Which increases friction?

a)

Water on floor

b)

Oil on metal

c)

Rough surface

d)

Polished surface

21.

A simple machine helps us do work by making it _____.

a)

Harder

b)

Faster only

c)

Easier

d)

Heavier

22.

Which is an example of a simple machine?

a)

Television

b)

Computer

c)

Knife

d)

Electric fan

23.

What do simple machines change?

a)

Color of objects

b)

Direction of force

c)

Size of objects

d)

Shape of air

24.

A ramp is an example of what?

a)

Lever

b)

Pulley

c)

Inclined plane

d)

Wheel

25.

Which tool is used to pull out nails?

a)

Hammer

b)

Screwdriver

c)

Scissors

d)

Knife

26.

Which simple machine is used in flagpoles?

a)

Lever

b)

Pulley

c)

Wheel and axle

d)

Wedge

27.

What simple machine is used in doorknobs?

a)

Wheel and axle

b)

Inclined plane

c)

Wedge

d)

Lever

28.

Which simple machine helps lift heavy loads?

a)

Pulley

b)

Spoon

c)

Chair

d)

Plate

29.

A seesaw is an example of _____.

a)

Wheel and axle

b)

Pulley

c)

Lever

d)

Screw

30.

Which simple machine has threads?

a)

Lever

b)

Wedge

c)

Screw

d)

Pulley

31.

How many types of simple machines are there?

a)

3

b)

4

c)

5

d)

6

32.

Which is NOT a type of simple machine?

a)

Pulley

b)

Lever

c)

Engine

d)

Inclined plane

33.

A knife is an example of _____.

a)

Lever

b)

Wedge

c)

Screw

d)

Pulley

34.

A bottle opener is an example of _____.

a)

Wheel and axle

b)

Inclined plane

c)

Lever

d)

Screw

35.

Which simple machine is made of a rope and wheel?

a)

Screw

b)

Pulley

c)

Wedge

d)

Lever

36.

Which simple machine is used to hold objects together?

a)

Screw

b)

Lever

c)

Pulley

d)

Wheel

37.

Which simple machine splits objects?

a)

Pulley

b)

Wedge

c)

Wheel and axle

d)

Screw

38.

A steering wheel is an example of _____.

a)

Lever

b)

Inclined plane

c)

Wheel and axle

d)

Wedge

39.

Which is an example of a screw?

a)

Knife

b)

Ramp

c)

Jar lid

d)

Pulley

40.

Energy transformation happens when energy _____.

a)

Stops

b)

Changes form

c)

Disappears

d)

Gets heavier

41.

A light bulb transforms electrical energy into _____.

a)

Sound energy

b)

Mechanical energy

c)

Light and heat energy

d)

Chemical energy

42.

When we eat food, chemical energy is transformed into _____.

a)

Light energy

b)

Mechanical energy

c)

Sound energy

d)

Electrical energy

43.

A fan transforms electrical energy into _____.

a)

Heat energy only

b)

Light energy

c)

Mechanical energy

d)

Chemical energy

44.

Plants transform sunlight into _____.

a)

Electrical energy

b)

Chemical energy

c)

Mechanical energy

d)

Sound energy

45.

A ringing bell changes mechanical energy into _____.

a)

Light energy

b)

Sound energy

c)

Chemical energy

d)

Heat energy

46.

Which shows energy transformation?

a)

Sleeping

b)

Eating

c)

Turning on the television

d)

Standing

47.

What energy is stored in a battery?

a)

Light energy

b)

Mechanical energy

c)

Chemical energy

d)

Sound energy

48.

A moving car transforms chemical energy from fuel into _____.

a)

Mechanical energy

b)

Light energy only

c)

Sound energy only

d)

Electrical energy

49.

Which transformation happens in a solar panel?

a)

Electrical to light

b)

Light to electrical

c)

Heat to sound

d)

Mechanical to chemical

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