WorksheetsEnergy Unit Test
Total questions: 38
Worksheet time: 19mins
Name
Class
Date
1.
1. A rock on a cliff has more potential energy than a rock on the ground.
a)
True
b)
False
2.
2. A moving train has less kinetic energy than a person riding a bike.
a)
True
b)
False
3.
3. When holding a hot cup of coffee, your hand gets warm because of radiation.
a)
True
b)
False
4.
4. Light energy is energy stored in chemical bonds.
a)
true
b)
false
5.
5. Heat is the transfer of energy. It makes things warmer. Some materials allow heat to flow through them more than others. Which statement is correct about insulators and conductors?
a)
Both insulators and conductors allow heat to flow easily through.
b)
Neither insulators nor conductors allow heat to easily flow through them.
c)
Insulators allow heat to flow easily and conductors do not allow heat to flow easily.
d)
Conductors allow heat to flow easily and insulators do not allow heat to flow easily.
6.
6. Heat is thermal energy transferred from one object to another because of a difference in ______________.
a)
mass
b)
temperature
c)
volume
d)
potential energy
7.
7. Fast food restaurants use infrared or heat lamps. The heat is transferred to the food by ________________.
a)
condensation
b)
conduction
c)
convection
d)
radiation
8.
8. When a pot of water is put on a stove, the water at the top gets hot in time because of _______________.
a)
radiation
b)
conduction
c)
convection
9.
9. What type of energy is energy of moving particles in an object?
a)
Chemical Energy
b)
Thermal Energy
c)
Light Energy
d)
Electrical Energy
10.
10. What energy form is electrons flowing in a circuit?
a)
Thermal Energy
b)
Chemical Energy
c)
Light Energy
d)
Electrical Energy
11.
11. If objects are two different temperatures, how will heat be transferred?
a)
higher temperature to lower temperature
b)
the temperatures won't change
c)
they will both give thermal energy to each other
d)
lower temperature to higher temperature
12.
12. When objects of two different temperatures meet and transfer thermal energy until they are equal temperatures, it is called ______.
a)
thermal transfer
b)
thermal equilibrium
c)
thermal change
d)
thermal conduction
13.
13. A group of students were testing different insulators. Analyze the data shown in the table. Draw a conclusion about which material would be the best insulator.
a)
Can with no insulator
b)
Can wrapped in paper towel
c)
Can wrapped in bubble wrap
14.
15. As water in a freezer turns into ice, what is happening to the molecules?
a)
They are speeding up and spreading further apart.
b)
They are speeding up and moving closer together.
c)
They are slowing down and spreading further apart.
d)
They are slowing down and moving closer together.
15.
16. A _______ is a substance with definite shape and closely packed vibrating molecules.
a)
Solid
b)
Liquid
c)
Gas
16.
17. Which state of matter has the highest temperature?
a)
Solid
b)
Liquid
c)
Gas
17.
19. _____________ is energy stored in chemical bonds.
a)
light
b)
electrical
c)
mechanical
d)
chemical
e)
sound
18.
20. Solar or radiant energy can be seen as ____________ energy.
a)
thermal
b)
light
c)
mechanical
d)
electrical
19.
21. An ice cube has more thermal energy than water.
a)
True
b)
False
20.
22. When water vapor changes to water, this process is called _______________.
a)
evaporation
b)
condensation
c)
melting
d)
freezing
21.
23. The state of matter of an object will change if it gains or loses enough thermal energy.
a)
true
b)
false
22.
24. A student wants to measure the temperature change of water after adding 5 cm3 (cubes) of ice to container 1 and 10 cm3 (cubes) of ice to container 2. The image below shows the experiment immediately after adding the ice.
Which statement can you infer to be true?
a)
The temperature should drop more in container 2 because the system gains more thermal energy.
b)
The temperature should drop more in container 2 because more heat will flow from the water to the ice.
c)
The temperature should drop more in container 1 because more heat will flow from the ice to the water.
d)
The temperature should drop more in container 1 because the ice melts more quickly.
23.
25. Maya is investigating trends in the temperature of a small pond near her house. She sets up a temperature probe that tracks the pond's temperature every two hours, starting at eight o'clock in the morning. The data she collected in the first 24 hours is provided in the table below.
Based on this information, what is happening to the water molecules in the pond between sunset (9 pm) and sunrise (5 am)?
a)
The average kinetic energy of the water molecules increases, and energy is transferred out of the pond.
b)
The average kinetic energy of the water molecules increases, and energy is transferred into the pond.
c)
The average kinetic energy of the water molecules decreases, and energy is transferred out of the pond.
d)
The average kinetic energy of the water molecules decreases, and energy is transferred into the pond.
24.
26. Which of the following is an example of heat transfer through conduction?
a)
hot air rising inside a house
b)
the Sun drying clothes hanging outside
c)
a microwave warming a cup of water
d)
a pan on the stove getting hot
25.
27. If each has the same temperature, which object has the most thermal energy?
a)
a cup of water
b)
a large pan of water
c)
a bathtub of water
d)
a bowl of water
26.
28. When molecules are vibrating, and you hear noise, this is the result of a __________ wave.
a)
mechanical
b)
electromagnetic
27.
29. Waves travel through mediums. A medium can be any...
a)
solid
b)
liquid
c)
gas
d)
all of the above
28.
30. What type of waves move through matter?
a)
mechanical
b)
electromagnetic
29.
31. The crest is the highest point of the wave.
a)
true
b)
false
30.
32. When a wave bounces off of a surface, it is called...
a)
refraction
b)
reflection
c)
absorption
d)
transmission
31.
33. Sound waves are caused by vibrating molecules.
a)
true
b)
false
32.
34. Scenes of outer space explosions in movies are often accompanied by a loud sound. Which of the following best describes why a scene like this is not realistic?
a)
Sound is not produced when something explodes in air.
b)
Sound can travel through a vacuum.
c)
Sound cannot produce vibrations.
d)
Sound needs a medium through which it can be transmitted.
33.
35. Sam is standing in an empty auditorium. He yells and hears his voice echo. What is happening to the sound to cause this echo?
a)
reflection of sound waves off the walls
b)
absorption of the sound waves by his voice
c)
distribution of the sound waves through the auditorium
d)
transmission of the sound waves within his ears
34.
36. What are the electromagnetic waves that we (as humans) can see?
a)
visible light
b)
Radio waves
c)
microwaves
d)
infrared waves
e)
ultraviolet waves
35.
37. Light waves strike a surface.
The energy from the light is captured and stored by the surface without being reflected or transmitted. What happened to the energy from the light?
a)
It was absorbed by the surface.
b)
It was scattered by the surface.
c)
It was bent and changed direction.
d)
It was released into the air.
36.
38. What must be true of the relationship between wavelength and frequency?
a)
the lesser the frequency, the shorter the wavelength
b)
the greater the frequency, the longer the wavelength
c)
the greater the frequency, the shorter the wavelength
37.
39. When light bends as it passes from one medium to another, this is an example of ____________.
a)
Reflection
b)
Refraction
c)
Absorption
d)
Transmission
38.
40. The fishbowl would allow all colors of light to be ____________.
a)
Reflected
b)
Refracted
c)
Absorbed
d)
Transmitted
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