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3T Chapter 1: Energy and Its Uses Quiz 2

Total questions: 25

Worksheet time: 17mins

Name
Class
Date
1.

What is energy?

a)

ability to create force

b)

ability to stay awake

c)

ability to create power

d)

ability to do work.

2.
Energy due to motion is ____________ energy. 
a)
Potential 
b)
Energy
c)
Kinetic
d)
Friction
3.
Gravitational potential energy depends on the ________ and ________ of the object. 
a)
Height and mass
b)
Friction and movement
c)
Mass and Movement
d)
Height and Friction 
4.
Elastic potential energy is the ability to stretch or _________
a)

pull

b)

straighten

c)

compress

d)

bend

5.

At which point does the ball possess the greatest amount of gravitational potential energy?

a)

D

b)

F

c)

B

d)

A

6.

At which point does the roller coaster possess the greatest amount of gravitational potential energy?

a)

W

b)

X

c)

Y

d)

Z

7.

At which point does the roller coaster possess the greatest amount of kinetic energy?

a)

W

b)

X

c)

Y

d)

Z

8.

What is happening to the energy of the girl from point A to point B?

a)

kinetic changes to gravitational potential

b)

gravitational potential changes to kinetic

c)

energy is lost

d)

energy is gained

9.

The Principle of Conservation of Energy means that ___________________.

a)

Energy CAN be created and destroyed or converted

b)

Energy can be used up or converted

c)

Energy CANNOT be created or destroyed, only converted

d)

Energy cannot be converted

10.
Why won't the roller coaster reach over the second hill?
a)
because it is going slow
b)
because energy cannot be created
c)
because it is going fast
d)
because energy cannot be destroyed
11.
Why can't the skater reach the same point where he was released when he goes up the other side of the ramp?
a)
because he is heavy
b)
because his mass is slowing him down
c)
because he gets tired
d)
because friction is slowing him down
12.

Which of the following energy transformations occurs when a lamp that is plugged into a wall socket is functioning correctly?

a)

Chemical potential to light

b)

Electrical to chemical potential

c)

Electrical to light

d)

Chemical potential to electrical

13.

Which of the following shows an energy transformation from chemical potential energy to electrical to light energy?

a)

A bolt of lightning lights the night sky.

b)

A candle glows brightly in the dark.

c)

A fire in a fireplace lights up a room.

d)

A battery causes a flashlight to shine.

14.
What energy transformations take place when a battery-operated radio is in use?
a)

Electrical to chemical potential to light

b)

Sound to chemical potential to mechanical

c)

Chemical potential to electrical to sound

d)

Light to electrical to thermal

15.
People get energy from the food that they eat and transform that energy as they move. Which energy transformations occur as a student rapidly rubs the palms of his hands together?
a)

kinetic to thermal to electrical

b)

chemical potential to kinetic to thermal

c)

kinetic to chemical potential to sound

d)

chemical potential to sound to electrical

16.
A television works by transforming electrical energy into what other kinds of energy?
a)

Light, thermal, and sound

b)

Thermal, chemical potential, and solar

c)

Sound, kinetic, and electrical

d)

Light, chemical potential, and mechanical

17.

Using this alarm clock is an example of energy transformation from electrical to three other forms of energy. Which of these is NOT created by the lamp?

a)

sound

b)

light

c)

heat

d)

chemical

18.
In energy transformations, "wasted energy" usually takes what form?
a)
heat
b)
chemical energy
c)
light
d)
sound waves
19.

A teacher rubbed a match against a piece of sandpaper. The match started to burn. Which statement best describes the energy changes that occurred?

a)

The chemical energy stored in the match changed to thermal energy and light energy.

b)

The thermal energy stored in the match changed to light energy and chemical energy.

c)

The light energy and thermal energy stored in the match changed to mechanical energy.

d)

The light energy and thermal energy stored in the match changed to chemical energy.

20.
What is power?
a)

transfer a force through a distance

b)

the rate of speed 

c)

the rate of energy conversion

d)

transfer of space over time

21.
What is the unit of measurement for Power?
a)
Joules
b)
Newtons
c)
Watts
d)
Meters
22.

If 68 W of power is produced in 18 seconds, how much energy is used?

a)

1,224 J

b)

0.264 J

c)

3.77 J

d)

12.24 J

23.
An Xbox consumes 15.7 watts while in standby mode. If you leave it in standby mode for 86,400 seconds (one day), how much work was done?
a)

1,356,490 J

b)

1,356,480 J

c)

1,356,470 J

d)

1,356,460 J

24.
How much time is needed to produce 720 Joules of work if 90 watts of power is used? 
a)

0.125 s

b)

8 s

c)

64800 s

d)

80 s

25.

When Aang fights Ozai, he wields 100,000 Joules in 25 seconds. What is his power?

a)

4,000 J/s (Watts)

b)

250,000 J/s (Watts)

c)

125,000,000 Newtons

d)

2,000,000 Joules