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Motion-ENERGY (transfer) & compound machines#3

Total questions: 37

Worksheet time: 30mins

Name
Class
Date
1.
What is kinetic energy?
a)
When an object is in motion
b)
When an object is not in motion
c)
all of the above
d)
none of the above
2.
What is potential energy?
a)
When an object is in motion
b)
When an object is not in motion
c)
all of the above
d)
none of the above
3.
What kind of energy is in a rock at the edge of a cliff?
a)
Potential
b)
Kinetic
4.
What kind of energy is in basketball passing through the hoop?
a)
Potential
b)
Kinetic
5.
What kind of energy is in an acorn hanging from an oak tree?
a)
Potential
b)
Kinetic
6.
Which example best represents potential energy?
a)
Fire
b)
ice cream
c)
bouncing ball 
d)
ocean waves 
7.
__________ energy is the energy of motion.
a)
Light
b)
Sound
c)
Kinetic
d)
Chemical
8.
Energy is the ability to do _____________ or cause change.
a)
work
b)
rest
c)
experiments
d)
science
9.
When you stretch a rubber band, you give it 
a)
kinetic energy
b)
elastic potential energy
c)
gravitational potential energy
d)
electrial energy
10.
What are two main forms of energy?
a)
Potential and Kinetic
b)
Chemical and Electrical
c)
Nuclear and Motion
d)
Heat and Light
11.
What causes a falling skydiver to slow down after the parachute opens?
a)
air resistance
b)
gravity
c)
inertia
d)
reference motion
12.
A complete path through which electricity can flow is a (n)
a)
insulative path
b)
magnetic pole
c)
electrical cycle
d)
electrical circuit
13.

What do you call kinetic plus potential energy?

a)

Mechanical

b)

Solar

c)

Electrical

d)

Thermal

14.
All of the following are sources of light except...
a)
the sun
b)
a light bulb
c)
fire
d)
the moon
15.
What is the energy possessed by an object due to its motion or its stored energy of position?
a)
Mechanical energy
b)
Kinetic energy
c)
Potential energy
d)
Thermal energy
16.
 Solar energy, water and wind power are sources of ____________ which means they do not pollute the environment.
a)
electrical energy
b)
green energy
c)
potential energy
d)
sound energy
17.
A solar panel converts light energy into...
a)
Kinetic Energy
b)
Heat Energy
c)
Electrical energy
d)
Nuclear energy
18.
An explosion converts chemical energy into kinetic, sound, light and ___________ energy. 
a)
Heat
b)
Chemical
c)
Nuclear
d)
Electrical 
19.
A microphone converts ___________ energy into __________ energy. 
a)
Sound, Electrical
b)
Electrical, Sound
c)
Sound, Kinetic
d)
Kinetic, Sound
20.
A greenhouse converts ___________ into heat energy.
a)
light
b)
kinetic
c)
chemical potential
21.

The cap on a water bottle has a spiral shape. When you place it on the bottle and twist it, the cap pulls itself toward the bottle.

The bottle cap is an example of which simple machine?

a)

screw

b)

lever

c)

pulley

d)

wheel and axle

e)

incline plane

22.

The center of this seesaw is used to balance the board with the seats. The children can easily move up and down without much force.

The seesaw is an example of which simple machine?

a)

wedge

b)

screw

c)

lever

d)

pulley

e)

wheel and axle

23.

What kind of machine is a wagon?

a)

Simple Machine

b)

Compound Machine

24.

What kind of machine is a wheel barrow?

a)

Simple Machine

b)

Compound Machine

25.

Which is an example of someone using a simple machine to do work?

a)

a boy runs across a football field

b)

a mother pushes a stroller up a ramp into a building

c)

a girl eats a sandwich

d)

a banker counts money

26.

Which is a characteristic of simple machines?

a)

They run on electricity.

b)

They take a long time to make.

c)

They have few or no moving parts.

d)

They are not very large.

27.

What simple machines make up this compound machine?

a)

pulley

b)

lever

c)

wedge

d)

screw

e)

inclined plane

28.

What simple machines make up this compound machine?

a)

lever

b)

wheel & axle

c)

inclined plane

d)

screw

e)

pulley

29.

Which is an example of gravity acting as a pulling force?

a)

A

b)

B

c)

C

d)

D

30.

This playground has several examples of a simple machine. The arrows are pointing to - -

a)

screws

b)

wedges

c)

inclined planes

d)

levers

31.

Which two people are using pulleys?

a)
b)
c)
d)
e)
32.

Scissors are made by combining which two simple machines?

a)

Pulley and screw

b)

Lever and wedge

c)

Wheel and axle

d)

Ramp and lever

33.

What simple machine is most likely being used to lift the piano?

a)

Wedge

b)

Lever

c)

Inclined plane

d)

Pulley

34.

A family is moving a couch to a new house. Which of these simple machines would BEST move the couch from the driveway onto a truck?

a)

Wheel and axle

b)

Pulley

c)

Wedge

d)

Inclined plane

35.

Jason wants to attach two pieces of wood together to make a sing seat that cannot be pulled apart. What simple machine would he MOST likely use to attach the two pieces of wood?

a)

wedge

b)

screw

c)

rod

d)

lever

36.

How does a knife act as a wedge to make work easier when eating?

a)

it moves food around the plate

b)

it cuts food into smaller pieces

c)

it lifts soup to a person's mouth

d)

it sticks food together for a larger bite

37.

Which person is using a compound machine?

a)

A

b)

B

c)

C

d)

D

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