Kinetic and Potential Ex.
Kinetic Energy
Speed
Potential energy
Phet Simulation Questions
100
Analyze the picture below
Is this potential or kinetic energy?
Potential Energy
100
Object that is moving has... (______) Energy.
Kinetic
100
What two pieces of information do you need to calculate the speed of something?
time and distance
100
A ball on top of a hill has MORE OR LESS potential energy?
The higher the object the more potential energy
100
A skater with 100 kg had the most _______ enrgy in the Phet Simulation
kinetic
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
What is the average speed of a ball that rolled 128 inches in 4 seconds?
32 inches a second
200
Height affects potential energy. What else affects potential energy?
Mass or weight
200
A skater with 5 kg had the least amount of ________ energy
kinetic
300
Which point has the greatest kinetic energy?
anything not moving or stored
300
friction can transform kinetic to ___________ energy
thermal
300
In 6 seconds Tucker ran 48 feet. How fast was he running?
8ft per second.
300
A ball is rolling down a hill. What kind of energy does it have?
Kinetic because it is moving
300
Based on your observations, what was the relationship between kinetic and potential energy?
When kinetic energy ___________ the potential energy __________ and vice versa.
When kinetic energy increased, the potential energy decreased and vice versa.
400
How does friction slow down a roller coaster car?
It converts the kinetic energy to thermal energy.
400
As a roller coaster is rolling down the track, is it transforming (converting) ___________ energy to _______________ energy
potential / kinetic energy
It is losing potential energy and gaining kinetic energy
400
A school bus travels at 40 miles per hour. How long would it take the bus to go 20 miles?
half an hour
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
400
What is a claim you can make about the relationship between mass and kinetic energy increases?
As mass increases, k.e increases.
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) is losing _________energy and gaining _____________ energy
Kinetic energy / potential energy
500
Tate kicked a soccer ball and it went 5ft per second.
Jack kicked a soccer ball and it went 250 ft per minute.
Which one kicked the ball faster? (explain how you know)
Tate kicked the ball faster there are 60 seconds in minute so 5 X 60 = 300
Which means the ball she kicked was traveling at 300 feet per minute.
500
True or False: Point B and D have the same amount of potential energy
True
500
We changed the mass of a skater by starting at 5kg and slowly increasing the mass to 100kg. As we did this, what did you notice happening to the total amount of kinetic energy?
As we increase the __________ we increase the_____________ and the _____________
As we increase the mass, we increase the potential and kinetic energy