Energy

Question 1

ENERGY RESULTING FROM THE MOTION OF AN OBJECT.

Answer 1

Kinetic Energy

Question 2

Kinetic Energy Equation

Answer 2

KE = ½mv2

Question 3

Variable:
KE
m
v

Answer 3

Quantity-Kinetic Energy:
KINETIC ENERGY (J)
MASS (kg)
VELOCITY (m/s)

Question 4

STORED ENERGY RESULTING FROM AN OBJECT’S LOCATION.

Answer 4

Potential Energy

REMEMBER THAT GRAVITY IS POSITIVE WHEN PERFORMING CALCULATIONS WITH POTENTIAL ENERGY

Question 5

Potential Energy Equation

Answer 5

PE = mgh

Question 6

Variable:
PE
m
g
h

Answer 6

Quantity-Potential Energy:
POTENTIAL ENERGY (J)
MASS(kg)
ACCELERATION DUE TO GRAVITY (m/s2)
HEIGHT (m)

Question 7

THE REASON WHY WE CAN SET KINETIC EQUAL TO POTENTIAL

Answer 7

Energy Conservation

Question 8

states that energy can neither be created nor destroyed, it can only change forms.
When we look at this principle, we typically analyze how energy transforms between kinetic and potential forms.

Answer 8

The Law of Conservation of Energy

Question 9

DOING WORK ON AN OBJECT CHANGES ITS ENERGY.

Answer 9

Work

NO WORK IS DONE ON AN OBJECT IF IT REMAINS STATIONARY OR HAS ZERO DISPLACEMENT.

Question 10

Work Equation

Answer 10

W = Fx

Question 11

Variable:
W
F
x

Answer 11

Quantity-Work:
WORK (J)
FORCE (N)
DISPLACEMENT (m)

Question 12

THE RATE AT WHICH WORK IS DONE WITH RESPECT TO TIME.

Answer 12

Power

POWER IS MEASURED USING WATTS. THE UNIT IS W.DO NOT CONFUSE THE UNIT WITH THE VARIABLE FOR WORK.

Question 13

Power Equations

Answer 13

P = W/t
P = Fv

Question 14

Variable:
W
F
P
t
v

Answer 14

Quantity-Power:
WORK (J)
FORCE (N)
POWER (W)
TIME (s)
VELOCITY (m/s)