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LT #5-16 Review

Total questions: 54

Worksheet time: 43mins

Name
Class
Date
1.
Which of these is an example of light energy being transformed into chemical energy?
a)
A glow stick lights up when broken.
b)
Water heated by the sun evaporates.
c)
A plant makes sugar in the sunlight.
d)
A battery causes a buzzer to vibrate.
2.
Which kind of energy change occurs when a candle is burning?
a)
Chemical to light.
b)
Light to electrical.
c)
Solar to heat.
d)
Chemical to electrical.
3.
Some students observing a classroom device being used, noticed the below energy transformations. 
Electrical → Mechanical → Sound
Which device were the students most likely observing?
a)
A triple beam balance measuring an object’s mass.
b)
A pencil sharpener plugged into a wall outlet.
c)
A projector displaying a diagram on the screen.
d)
A working flashlight used to light up a dark corner.
4.
Which energy conversion is taking place when you put gasoline in a car?
a)
thermal -> electrical
b)
mechanical -> electrical
c)
chemical -> mechanical
d)
mechanical -> electromagnetic
5.
According to the Law of Conservation of Energy, energy cannot be _________ or ____________. 
a)
destroyed, destroyed
b)
created, saved
c)
created, destroyed
d)
lost, found
6.

Identify the correct sequence of energy transformations using a television.

a)

Electric --> radiant + sound

b)

Electric --> elastic + sound

c)

Electric --> radiant + thermal

d)

Electric --> chemical + nuclear

7.

Identify the correct sequence of energy transformations in the campfire.

a)

Chemical --> thermal + radiant

b)

Chemical --> solar  + radiant

c)

Nuclear --> sound + thermal

d)

Chemical --> electric + sound 

8.

In a nuclear power plant, uranium atoms are split in a process called “fission.” This releases a tremendous amount of energy. In order to provide this energy to factories and homes, the power plant converts the energy to –

a)

water

b)

oil

c)

natural gas

d)

electricity

9.

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)

mechanical to thermal to electrical

b)

chemical to mechanical to thermal

c)

mechanical to chemical to sound

d)

chemical to sound to electrical

10.

What is a medium?

a)

the matter through which a mechanical wave travels

b)

two lines that will never touch

c)

the particles of a medium that travel parallel to a wave

d)

two lines that meet at a right angle

11.

What is a longitudinal wave?

a)

the matter through which a mechanical wave travels

b)

two lines that will never touch

c)

the particles of a medium that travel parallel to a wave

d)

two lines that meet at a right angle

12.

What is a transverse wave?

a)

the particles of a medium that travel perpendicular to a wave

b)

the particles of a medium that are fast

c)

the particles of a medium that travel parallel to a wave

d)

the particles of a medium that you can touch

13.

What type of wave is this?

a)

Transverse

b)

Longitudinal

c)

Surface

d)

Hair wave

14.

What type of wave is this?

a)

Transverse

b)

Longitudinal

c)

Surface

d)

Hair wave

15.

At which point is the Wavelength located?

a)

A

b)

C

c)

D

d)

E

e)

F

16.

At which point is the Compression located?

a)

B

b)

D

c)

E

d)

F

e)

G

17.

At which point is the Amplitude located?

a)

B

b)

D

c)

E

d)

F

e)

G

18.

What is the wave equation (HINT: Speed)?

a)

λ = 2 + 5

b)

speed = λ x f

c)

λ = wave + speed

d)

speed = y + f

e)

f = h x v

19.

What is the unit of frequency?

a)

m/s

b)

m

c)

Hz

d)

f

20.

What is the frequency of a wave with a speed of 1 m/s and a wavelength of 0.5 m?

a)

2 Hz

b)

2 m/s

c)

0.5 Hz

d)

1.5 m

21.

What is the speed of a wave with a wavelength of 42.8 m and a frequency of 100 Hz?

a)

428 m/s

b)

4,280 m/s

c)

2.3 m/s

d)

0.428 m/s

22.

The distance from the crest to the trough of a wave is 86 m. What is the amplitude of the wave?

a)

86 m

b)

43 m

c)

166 m

d)

0 m

23.

Find the Wavelength of a wave with a speed of 3,000 m/s and frequency of 20 Hz.

a)

20 m

b)

150 m

c)

60, 000 m

d)

3, 000 m

24.

A wave has a speed of 24 m/s and a wavelength of 0.04 m. What is the frequency of the wave?

a)

600 Hz

b)

600 m/s

c)

0.096 Hz

d)

0.04 Hz

25.

Find the speed of a 10 m wave that has a frequency of 1 Hz.

a)

9 m/s

b)

10 Hz

c)

10 m/s

d)

10 m

26.

How long is a wave that has a frequency of 100 Hz and a speed of 3 m/s?

a)

3 m

b)

30.0 m

c)

300 m

d)

0.03 m

27.

The region where matter molecules are closer together

a)

cochlea

b)

compression

c)

rarefaction

d)

vibration

28.

The region where matter molecules are farther apart

a)

cochlea

b)

compression

c)

rarefaction

d)

decibel

29.

How high or low a sound seems to be

a)

pitch

b)

amplitude

c)

volume

d)

tone

30.

A measure of the energy in a sound wave

a)

pitch

b)

amplitude

c)

decibel

d)

hertz

31.
When an ambulance move TOWARD you it sounds ________ pitched. 
a)
high
b)
low
c)
medium
32.
When the car moves AWAY from you, its horn seems...
a)
Low pitched
b)
High pitched
c)
Normal
33.

As sounds move away or towards an object, the pitch and frequency change. This phenomenon is called the...

a)

Coriolis Effect

b)

Doppler Effect

c)

Movement Effect

d)

Black Hole Effect

34.

Choose the three primary colors of light.

a)

Pink

b)

Red

c)

Blue

d)

Green

35.

Choose the three secondary colors of light.

a)

Yellow

b)

Green

c)

Cyan

d)

Magenta

36.

Which color has the longest wavelength and shortest frequency?

a)

Red

b)

Yellow

c)

Blue

d)

Violet

37.

Which color has the shortest wavelength and highest frequency?

a)

Violet

b)

Yellow

c)

Orange

d)

Green

38.

When you add the secondary and primary colors of light together, what color is produced?

a)

white

b)

black

39.

The color of objects that we see is the color of the wavelength that is ___________ from its surface.

a)

refracted

b)

reflected

c)

absorbed

d)

dispersed

40.

When light traveling in straight lines passes through an object that is curved like a lens, the light is _________ at different angles.

a)

refracted

b)

reflected

c)

absorbed

d)

dispersed

41.

Light rays hitting a bumpy surface are ___________ or scattered creating a blurred image.

a)

reflected

b)

refracted

c)

absorbed

d)

diffused

42.

A/an _________ material absorbs all of the light that strikes it.

a)

opaque

b)

transparent

c)

translucent

43.

__________ objects transmit light.

a)

Transparent

b)

Opaque

c)

Translucent

44.

_________ objects scatter light as it passes through.

a)

Transparent

b)

Opaque

c)

Translucent

45.

Visible light is the part of the _______________, between infrared and ultraviolet, that is visible to the human eye.

a)

electromagnetic spectrum

b)

visible light spectrum

c)

electrical light spectrum

46.

For an object to be visible, it must either __________ or ___________.

a)

produce its own light

b)

reflect light

c)

absorb light

47.

An example of a transparent object

a)

glass

b)

wood

c)

wax paper

48.

An example of an opaque object

a)

metal

b)

water

c)

frosted glass

49.

An example of a translucent object

a)

cardboard

b)

air

c)

wax paper

50.

What does the picture below illustrate?

a)

Visible Light Spectrum

b)

Electromagnetic Spectrum

c)

Frequency Indicator

d)

Color Line

51.

Light is a type of energy that travels as an ______________ ____________.

a)

Longitudinal Wave

b)

Electric Current

c)

Electromagnetic Wave

d)

Magnetic Wave

52.

A blue dish appears blue because it

a)

absorbs blue light

b)

absorbs white light

c)

reflects white light

d)

reflects blue light

53.

Which color ABSORBS all wavelengths of light?

a)

Red

b)

Black

c)

White

d)

Pink

54.

Why does this apple look red?

a)

The apple reflects red light and absorbs all other colors

b)

The apple absorbs red light and reflects all other colors

c)

The apple reflects all the light shinning on it

d)

The apple is red because we see that color.

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