Kinetic and Potential Ex.
Kinetic Energy
Density
Potential energy
100
Is this potential or kinetic energy?
Potential Energy
100
Object that is moving has... (______) Energy.
Kinetic
100
what is the density if the mass is 4g and the volume is 2 mL
D= M/V 4/2= 2 g/mL
100
Ball on top of a hill has MORE OR LESS potential energy?
The higher the object the more potential energy
200
A stationary roller coaster is at the top of the track. What kind of energy does it have?
Potential energy
200
Speed affects Kinetic energy; the faster the movement the ------- the kinetic energy.
the faster the kinetic energy
200
Calculate the density of a cube with a volume of 12 cm3 and a mass of 60 grams
D= M/V
D=60/12
D=5 g/cm3
200
Height affects potential energy. What else affects potential energy?
Mass or weight
300
Give an example of potential energy
anything not moving or stored
300
Give an example of Kinetic energy
anything that moves
300
An object was placed in a graduated cylinder measured at 50 mL. The water rose to 60 mL. What is the density of the object if it has a mass of 90 grams?
Water displacement= Vf - Vi
60- 50= 10 mL = volume
D=m/v= 90/10
D= 9 g/mL
300
A ball is rolling down a hill. What kind of energy does it have?
Kinetic because it is moving
400
Is this potential or kinetic energy? Why
Kinetic Energy
400
As a roller coaster is rolling down the track, is it transforming/converting
It is losing potential energy and gaining kinetic energy
400
Determine the density in g/cm3 of a
mineral that has a volume of 4 cm3 and a
mass of 24.0 g.
D= M/V
D=24/4= 6 g/cm3
400
What has more PE?
Watermelon of mass 18kg ? or Feather of mass 3kg
the watermelon because it has more weight.
The MORE mass the MORE Potential Energy
500
What point on the roller coaster has the GREATEST Potential energy and WHY?
Point A because it is the highest
500
When a roller coaster is going up the hill the energy is transforming/ converting
It is losing Kinetic and gaining potential energy
500
What is the density of a cube if it has ONE side measurement of 5 cm and a mass of 10 g. (Hint the answer is not 2)
V= L x W x H
= 5 x 5 x 5= 125
D= M/V 10/125
D= 0.08
500
What has least potential energy? Why?
A ball weighing 25 lbs or a box weighing 5 lbs.
The feather because it has less mass (weight)
The less mass the less potential energy