Work and Energy

Question 1

What is the equation for Kinetic Energy

Answer 1

Ke=.5mv2

Question 2

How do you find work done by gravity?

Answer 2

W=fd(cos(θ))

Question 3

What is potential energy?

Answer 3

Stored energy, the energy an object possess due to its position in a feild

Question 4

What is the equation for gravitational potential energy?

Answer 4

mgh=μ

Question 5

What is the equation for elastic potential energy?

Answer 5

Ms=.5kx2

Question 6

What is a conservative force?

Answer 6

Work done is half independent

Work done is on a closed path

Question 7

What is a Non-conservative force?

Answer 7

does not meet criteria for conservative forces

Question 8

What is Mechanical energy

Answer 8

The summation of Kinetic and Potential energies (ε=K+U)

Question 9

What is the equation for power?

Answer 9

P=W/T

Question 10

What is the equation for work not done by gravity?

Answer 10

W=FD

Question 11

What is Hooke’s Law?

Answer 11

Fs=-Kx (Spring force is equal to negative spring constant multiplied by spring stretch/compression)

Question 12

What does slope tell us?

Answer 12

spring constant

Question 13

What does area tell us?

Answer 13

if newtons over meters work

Question 14

Break down the Power Equation.

Answer 14

P=Force x speed

Question 15

What does frictionless mean

Answer 15

E1=E2 (Ki+Ui=Kf+Uf)

Question 16

What does having friction with work mean?

Answer 16

W=-Fkd = change in energy=-fkd

Question 17

Friction

Answer 17

Kf-Ki +Uf-Ui=-fkd

Question 18

What is Energy?

Answer 18

the ability to do work

Question 19

What is Work

Answer 19

an energy transfer