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WorksheetsEnergy and Sound
Total questions: 25
Worksheet time: 13mins
Name
Class
Date
1.
A wave with a shorter wavelength will have a ____.
a)
higher frequency
b)
lower frequency
c)
higher amplitude
d)
lower amplitude
2.
Disturbances that transfer energy from one point to another are called ___.
a)
waves
b)
medium
c)
vibrations
d)
sound
3.
Sound waves travel fastest through ___.
a)
gases
b)
liquids
c)
solids
d)
plasma
4.
What type of wave is a sound wave?
a)
transverse
b)
compressional
c)
seismic
d)
electromagnetic
5.
As a police car passes, sirens have a __ pitch coming towards you and a __ pitch as they pass.
a)
higher, lower
b)
lower, higher
c)
louder, softer
d)
brighter, dimmer
6.
Where does a roller coaster have the highest amount of potential energy?
a)
at the top of the tallest hill
b)
at the top of the last hill
c)
at the bottom of the first hill
d)
at the end
7.
The loudness of a sound wave depends on its ___.
a)
wavelength
b)
frequency
c)
amplitude
d)
pitch
8.
Which object has kinetic energy?
a)
a dog lying in his bed
b)
a basketball sitting on the ground
c)
a skateboard rolling down the driveway
d)
a car parked in the parking lot
9.
An echo is an example of the ____ of a sound wave.
a)
reflection
b)
absorption
c)
traveling
d)
compression
10.
What determines the gravitational potential energy of an object?
a)
mass and velocity
b)
mass and height
c)
mass and speed
d)
speed and height
11.
What determines the kinetic energy of an object?
a)
mass and velocity
b)
mass and height
c)
speed and height
d)
speed and gravity
12.
What is the energy transformation in a hydroelectric plant?
a)
gravitational potential energy to mechanical energy to electrical energy
b)
electrical energy to gravitational potential energy to mechanical energy
c)
electrical energy to kinetic energy
d)
chemical PE to electrical energy
13.
What is the energy transformation in a flashlight?
a)
chemical PE -> electrical -> light
b)
chemical PE -> heat -> light
c)
electrical -> light
d)
electrical -> light -> heat
14.
When an object falls, where along its path does it have the most kinetic energy?
a)
right before it hits the ground
b)
as it starts falling
c)
before it falls
d)
after it hits the ground
15.
What is an example of the law of conservation of energy?
a)
Energy from battery turned into light and heat
b)
2 g of reactants yields 2 g of products
c)
you should turn off the lights when you leave the room
d)
when you burn wood, the energy disappears
16.
What kind of energy is always produced, often as a by-product, during an energy transformation.
a)
heat
b)
light
c)
kinetic
d)
potential
17.
A wavelength is measured as the distance from ________.
a)
crest to crest
b)
crest to trough
c)
trough to crest
d)
midpoint to trough or crest
18.
Amplitude is measured as the distance from ___.
a)
crest to crest
b)
trough to trough
c)
crest to trough
d)
midpoint to crest or trough
19.
What does the frequency determine about a sound?
a)
how high or low it is
b)
how loud it is
c)
how nice it sounds
d)
how bad it sounds
20.
What is the independent variable in an experiment?
a)
the change
b)
the result
c)
the variable kept constant
d)
the answer
21.
An exothermic reaction will cause a liquid to get ___.
a)
colder
b)
warmer
c)
cloudy
d)
darker
22.
Atomic mass is made up of the ________ in an atom.
a)
protons and electrons
b)
protons and neutrons
c)
neutrons and electrons
d)
protons
23.
Letters B, D, and F are called _____.
a)
rarefactions
b)
compressions
c)
crests
d)
troughs
24.
Which one of these has the higher frequency?
a)
the top wave
b)
the bottom wave
c)
they have the same frequency
d)
you can't measure frequency from this picture
25.
Energy stored in chemical bonds is called ____.
a)
chemical PE
b)
gravitational PE
c)
elastic PE
d)
kinetic energy
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