1/7 Virtual Make-up Day : Work, Energy, and POWER!
star
star
star
star
star
Last updated over 3 years ago
13 questions
4
4
4
4
4
4
4
4
4
4
4
4
4
Question 1
1.
A _______ is whatever section of the universe you are talking about at the time.
Question 2
2.
The amount of work that you are doing is equal to the _______ you are using times the _______ that you move it. Work is most often expressed in units of _______ .
Question 3
3.
Physicists often write the equation of work as __________ because it will fit any scenario that involves a constant force over any distance.
Question 4
4.
Joules are often used as the units for _______. Work is just a change in energy. One of the ways to define energy is as the ability to do _______ .
Question 5
5.
Kinetic energy is the energy of __________ . The equation for it is __________ .
Question 6
6.
Potential energy is energy that _______ be used to do work. A common type is gravitational potential energy: energy that comes from the fact that _______ exists.
Question 7
7.
Gravitational potential energy can be calculated using the equation __________ .
Question 8
8.
Use this equation find the force of a spring using Hooke’s law: __________ . To find the potential energy of a spring you’d use the equation __________ .
Question 9
9.
When someone does work on a system, its _______ changes.
Question 10
10.
A _______ system is one that doesn’t lose energy through work.
Question 11
11.
Average power is defined as _______ over time and is measured in Watts (J/s).
Question 12
12.
If we change the power equation around we can say that power is the _______ applied to something with a particular average velocity.
Question 13
13.
Power is the best way to calculate how _______ moves around in a circuit.