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SLO Post Review Practice #2
Test Description: Part 2 test prep
Instructions: Answer all questions to get your test result.
1) A generator converts mechanical energy into _____________________ energy.
A
sound
B
light
C
chemical
D
electrical
2) A Solar powered car converts _______________ energy into _________________ energy.
A
light, chemical
B
mechanical, light
C
light, mechanical
D
electrical, mechanical
3) Bradley is standing on the top of a mountain holding a soccer ball. Which of these best describes what happens when he throws the ball over the edge?
A
The kinetic energy decreases and the total amount of energy increases.
B
The kinetic energy increases and so does the total amount of energy.
C
Both the kinetic and potential energy change, but the total energy remains constant.
D
The potential energy decreases and the total amount of energy also decreases.
4) What happens to the electricity as it flows through the closed circuit?
A
the electricity is not important to the function of the bulb
B
some is changed into light and heat energy and some continues through the circuit
C
all of it is transferred into light energy
D
more energy leaves the bulb than what enters
5) Burning logs in the fireplace produce both heat and light energy. The logs, before burning, were a source of
A
electrical potential energy
B
elastic potential energy.
C
chemical potential energy.
D
gravitational potential energy.
6) Electrical energy can be transformed into other types of energy. We often experience this transformation of energy in our everyday lives. The example that represents a transformation from electrical to sound energy is
A
flashlight
B
car
C
television
D
fire burning
7) Electrical energy can be transformed into other types of energy. We often experience these changes of energy in our everyday lives. Which example is a transformation from electrical energy to light energy?
A
solar panels
B
boat motor
C
burner on a stove
D
flashlight
8) Jenna made an electric circuit as seen in the picture. She placed a thermometer near her light bulb. After the light bulb was turned on for an hour, what did she MOST LIKELY observe?
A
The temperature in the thermometer went up.
B
The temperature in the thermometer went down
C
Both the light and temperature remained the same over time
D
The bulb glowed brighter over time.
9) A battery uses _________________ energy to generate _______________ energy.
A
chemical, electrical
B
chemical, mechanical
C
electrical, chemical
D
electrical, mechanical
10) Identify which best describes the energy used to pluck guitar strings to make sound.
A
electromagnetic
B
heat
C
electricity
D
mechanical
11) The light bulb converts electrical energy into light and _________.
A
electromagnetic
B
chemical
C
heat
D
nuclear
12) A book is resting on a table. The book has
A
potential energy only.
B
kinetic energy only.
C
both kinetic and potential energy
D
neither kinetic or potential energy.
13) How does a wind turbine produce electricity?
A
Heat reflected from mirrors turn the rotor blades that turn the generator to produce electricity.
B
Flowing Water turns the rotor blades that turn the generator to produce electricity.
C
Energy from the Sun turns the rotor blades that turn the generator to produce electricity.
D
Moving air turns the rotor blades that turn the generator to produce electricity.
14) Jan’s teacher showed the class a mirror, a lit flashlight, a burning candle, a thick scarf, a wool mitten, and a sparkly sticker. Jan’s group observed the objects and made a list of those that give off heat. Why did they give off heat?
A
They sparkle.
B
You wear them to keep warm
C
They are insulators.
D
They produce light.
15) Which does not represent an example of chemical energy?
A
food
B
batteries
C
gasoline
D
sunlight
16) As a roller coaster goes downhill
A
potential energy is converted into electrical energy.
B
potential energy is converted into kinetic energy.
C
kinetic energy is converted into potential energy
D
electrical energy is converted into potential energy
17) Maria went for a walk by a pond. Which object did she see on that walk that gave off heat to keep her warm?
A
birds singing
B
the sun
C
the pond water
D
flowers
18) A box slides from the top of a ramp to the bottom, its maximum potential energy is located
A
at the bottom
B
at the exact middle of the ramp
C
equal at all locations.
D
at the top
19) On Halloween, you take a glow stick, crack the capsule inside and shake it until it glows. This is an example of light energy being created from ___________________ energy.
A
thermal
B
mechanical
C
chemical
D
solution
20) Which of these would have the greatest potential energy?
A
A roller coaster at the bottom of the hill
B
A roller coaster half-way up the hill.
C
A roller coaster half-way down the hill
D
A roller coaster at the top of a hill.
*select an answer for all questions
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