WorksheetsUnit 11 - Work, Power, Energy (PSCP)
Total questions: 25
Worksheet time: 13mins
VOCAB: a change in energy
work
power
kinetic energy
potential energy
What are two requirements that must be met in order for work to be done on an object?
the object cannot move
the object must follow the law of conversation of momentum
the object must move in the same direction the force was applied
the object must move in the opposite direction the force was applied
What is one Joule equal to? (CHECK YOUR CHEAT SHEET!)
N x m
kg x m/s
W / s
m/s
VOCAB: rate at which work is done
work
power
kinetic energy
acceleration
What is the SI Unit for power? (CHECK YOUR CHEAT SHEET!)
Joules (J)
Watts (W)
Newtons (N)
meters (m)
A 750 Watt blender will crush ice faster than a 500 Watt blender.
True
False
Student A does 100 J of work in 20 seconds. Student B does 100 J of work in 10 seconds. Which student produced more power?
Student A because they took longer.
Student B because they took longer.
Student A because they were faster.
Student B because they were faster.
VOCAB: motion energy
work
power
kinetic energy
potential energy
VOCAB: stored energy
work
power
kinetic energy
potential energy
If an object's velocity doubles, how doe this change its kinetic energy? (Think about what "v^2" means in the KE equation!)
KE doubles!
KE triples!
KE quadruples!
KE is halved!
VOCAB: sum of the KE and PE of an object
nuclear energy
chemical energy
mechanical energy
sound energy
Which of the following is an example(s) of work being done, resulting in a change of kinetic energy for the object?
a baseball speeds up when it is thrown from the pitcher's hand
a baseball is at rest in the catcher's glove
a baseball slows down as it rolls through the grass
a baseball is launched into the air by a bat
Which of the following is an example(s) of work being done, resulting in a change of potential energy?
You pick up clothes off your bedroom floor and put them in a drawer.
Clothes lay at rest on your bedroom floor.
You drop clothes from your arms into the washing machine.
You fold your clothes on a table.
How does energy change forms as skydiver jumps out of a plane?
potential energy is converted to kinetic energy
kinetic energy is converted to potential energy
thermal energy is converted to chemical energy
sound energy is converted to kinetic energy
The equation e=mc^2 tells us about which of the following quantities? (CHECK YOUR CHEAT SHEET!)
mass and energy
mass and acceleration
force and work
power and work
Which of the following statements about wind energy is true?
Wind energy is renewable and clean.
Wind energy is nonrenewable and clean.
Wind energy is renewable and unclean.
Wind energy is nonrenewable and unclean.
Which of the following is a renewable energy resource?
coal
oil
sunlight
nuclear
What type of energy conversion are power plants designed to do to any energy resource?
Change energy resource into electrical energy.
Change energy resource into geothermal energy.
Change energy resource into nuclear energy.
Change energy resource into sound energy.
What type of energy resource would most likely use a dam?
wind
solar
hydroelectric
nuclear
What is the chemical energy stored in living or recently living things called?
nuclear energy
biomass energy
solar energy
geothermal energy
I will make sure I know how to read the equations on my cheat sheet and calculate Work, Power, Kinetic Energy, and Potential energy.
Yes! I want to do well on the calculations portion of the test!
I don't know. I'll think about it.
Maybe. If I have time...
Nah
If the person riding the roller coaster has 500 J of potential energy at point A, how much kinetic energy do they have at point B (halfway down the hill)?
500 J
250 J
0 J
There's no way to tell.
If the person riding the roller coaster has 500 J of potential energy at point A, how much kinetic energy do they have at point C (bottom of the hill)?
500 J
250 J
0 J
There's no way to tell.
If the person riding the roller coaster has 500 J of potential energy and 0 J of kinetic energy at point A, how much mechanical energy does the person have?
500 J
250 J
0 J
There's no way to tell.
The person riding the roller coaster has 500 J of potential energy and 0 J of kinetic energy at point A. If they have 200 J of potential energy at point D, how much kinetic energy do they have?
500 J
350 J
300 J
There's no way to tell.
