Question

Question 1 (1 point)
Watch these Energy videos to help you answer each question in this Recap Quiz:

Kinetic and Potential Energy EOG Review
Energy Transformations EOG Review


Which graph best represents the relationship between mass and potential energy?

a




b




c




d




Question 2 (2 points)
Which two factors affect the amount of kinetic energy in a system?

a
height
b
velocity
c
temperature
d
mass
Question 3 (1 point)
How does the TOTAL ENERGY of the ball change as it goes from point R to S to T?



a
the total energy stays the same through each point in the picture
b
the total energy increases from R to S and then decreases from S to T
c
the total energy increases from R to s and then increases more from S to T
d
the total energy decreases from R to S and then increases from S to T
Question 4 (1 point)
A skateboarder is shown below.

At what point is the skateboarder's potential energy the greatest?





a
W
b
X
c
Y
d
Z
Question 5 (1 point)
The picture shows a pogo stick.




How does the potential energy of the pogo stick before the spring is compressed compare to the potential energy of the pogo stick after the spring is compressed?

a
The potential energy before compression is less than the potential energy after compression.
b
The potential energy before compression is the same as the potential energy after compression.
c
The potential energy before compression is more than the potential energy after compression.
d
The potential energy before compression is twice that of the potential energy after compression.
Question 6 (1 point)
A student depends on her electric alarm clock every morning to get up in time for school.



What energy transformation happens for the student's alarm clock to wake her up in the morning?

a
electrical energy is converted to thermal energy
b
electrical energy is converted to mechanical energy
c
mechanical energy is converted to electric energy
d
chemical energy is converted to kinetic energy
Question 7 (1 point)
Jayla uses many forms of energy to get ready for school in the morning.

Which table BEST matches each form of energy to Jayla's actions?

a




b




c




d




Question 8 (1 point)
What is the energy transformation that occurs when a smoke alarm goes off?

a
Electrical energy to mechanical (sound) energy.
b
Potential energy to electrical energy.
c
Electrical energy to potential energy.
d
Mechanical (sound) energy to light energy.
Question 9 (1 point)
The total amount of energy in the universe never changes, but the availability of each different type of energy to do work can change tremendously.

What best explains this change in available energy?

a
Energy is regularly changing from one form to another.
b
Energy is always converted with 100% efficiency.
c
Energy can only be created through nuclear reactions.
d
Energy can only be transferred as heat.
Question 10 (1 point)
The picture shows a woman running.



What is the main type of energy conversion taking place?

a
Chemical energy is converted to mechanical energy as the energy from digested food provides energy for movement.
b
Thermal energy is converted to mechanical energy as the energy from heat provides energy for movement.
c
Mechanical energy is converted to chemical energy as the movement from movement creates reactions in the surrounding air.
d
Mechanical energy is converted to thermal energy as the energy from movement creates heat in the surrounding air.
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Answer 1

I can answer most of these, but Q1, Q4, and Q7 need the images (graphs/tables/diagram) to be sure. Please paste or describe those images. Meanwhile, here are the answers I can give now with brief explanations:

Question 2: b and d — velocity and mass (KE = 1/2 mv^2 depends on mass and velocity).

Question 3: a — the total energy stays the same (energy is conserved; PE converts to KE and back).

Question 5: a — the potential energy before compression is less than after compression (compressing the spring stores more elastic potential energy).

Question 6: b — electrical energy is converted to mechanical energy (the alarm’s electronics drive a buzzer/vibration to make sound).

Question 8: a — electrical energy to mechanical (sound) energy (smoke alarm uses electrical energy to produce sound).

Question 9: a — energy is regularly changing from one form to another (that changes how available energy is for doing work).

Question 10: a — chemical energy is converted to mechanical energy (energy from digested food powers movement).

Send the images or describe Q1 (the graph choices), Q4 (positions W/X/Y/Z on the skateboard ramp), and Q7 (the four tables) and I’ll pick the correct options for those.