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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
electrical
C
light
D
chemical
2) A Solar powered car converts _______________ energy into _________________ energy.
A
mechanical, light
B
light, chemical
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
Both the kinetic and potential energy change, but the total energy remains constant.
B
The potential energy decreases and the total amount of energy also decreases.
C
The kinetic energy increases and so does the total amount of energy.
D
The kinetic energy decreases and the total amount of energy increases.
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
gravitational potential energy.
B
electrical potential energy
C
elastic potential energy.
D
chemical 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
car
B
flashlight
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
boat motor
B
flashlight
C
burner on a stove
D
solar panels
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
Both the light and temperature remained the same over time
B
The temperature in the thermometer went down
C
The bulb glowed brighter over time.
D
The temperature in the thermometer went up.
9) A battery uses _________________ energy to generate _______________ energy.
A
chemical, mechanical
B
chemical, electrical
C
electrical, mechanical
D
electrical, chemical
10) Identify which best describes the energy used to pluck guitar strings to make sound.
A
electricity
B
mechanical
C
electromagnetic
D
heat
11) The light bulb converts electrical energy into light and _________.
A
chemical
B
nuclear
C
electromagnetic
D
heat
12) A book is resting on a table. The book has
A
both kinetic and potential energy
B
potential energy only.
C
kinetic energy only.
D
neither kinetic or potential energy.
13) How does a wind turbine produce electricity?
A
Flowing Water turns the rotor blades that turn the generator to produce electricity.
B
Moving air 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
Heat reflected from mirrors turn 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 produce light.
B
They are insulators.
C
You wear them to keep warm
D
They sparkle.
15) Which does not represent an example of chemical energy?
A
batteries
B
gasoline
C
food
D
sunlight
16) As a roller coaster goes downhill
A
potential energy is converted into kinetic energy.
B
potential energy is converted into electrical energy.
C
electrical energy is converted into potential energy
D
kinetic 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
flowers
B
the pond water
C
the sun
D
birds singing
18) A box slides from the top of a ramp to the bottom, its maximum potential energy is located
A
equal at all locations.
B
at the exact middle of the ramp
C
at the top
D
at the bottom
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
solution
D
chemical
20) Which of these would have the greatest potential energy?
A
A roller coaster at the top of a hill.
B
A roller coaster at the bottom of the hill
C
A roller coaster half-way down the hill
D
A roller coaster half-way up the hill.
*select an answer for all questions
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