Kinetic Energy
Forms of Energy
Fun Questions!
Examples
Potential Energy
100
the energy of motion
What is Kinetic Energy?
100
Energy that is dependent on an objects height
Gravitational potential energy
100
A child is pushing a cart across the floor, and the cart moves at a certain speed. When he pushes the cart with a greater force, the cart begins to move faster.
Which type of energy increases when the child applies a greater force?
Kinetic Energy
100
A guy is walking his dog. He then stops at a stop sign. What type of OVERALL energy does he have? (potential or mechanical)
What is mechanical energy?
100
Why does an object have potential energy?
Due to its position and its mass
200
When you increase the mass of an object, what happens to the kinetic energy?
The Kinetic Energy increases also, by the SAME factor
200
What is the kinetic or potential energy associated with the motion or position of an object.
Mechanical Energy
200
A fan has a motor that converts electrical energy into another form of energy that propels the fan blades. Into which form of energy is electrical energy converted in a fan?
Mechanical Energy
200
A child is sledding down a very steep hill. What type of energy does he have?
What is kinetic energy?
200
When a pendulum swings, at which point is potential energy highest?
1 or 5
300
What is the opposite energy of Kinetic energy?
What is potential energy?
300
The energy of stretched or compressed objects.
Elastic Energy
300
The law of conservation of energy states that...
that energy can never be created or destroyed but it is ALWAYS changing from one to the other.
300
What type of energy does a trampoline have when you are standing on it?
What is elastic potential energy?
300
What was the final score of the hockey game yesterday? (And Who won?)
3-4 Swamp Rabbits!
400
the __________ an object moves, the more kinetic energy it has
Faster
400
The energy of electric charges
Electrical Energy
400
As the clock runs out of time during a basketball game, a buzzer goes off to signal the end of the game. Which form of energy does the buzzer produce to signal the end of the game?
Sound Energy
400
On top of a roller coaster, which energy do you have?
What is potential energy?
400
Two cars are perched at the top of a hill. One car has a mass of 250 kg and the other has a mass of 150 kg. Which car has the most potential energy and why?
The car that is 250 kg has the most potential energy because it has more mass than the other car.
500
A car with a mass of 800 kg is moving at a speed of 10 m/s. How much kinetic energy does it have?
KE= 40,000J
500
What is the energy of light and other forms of radiation, which travels through space as waves.
Electromagnetic Energy
500
ALL energy can be measured in what unit? Give the name and the abbreviation.
Joules, J
500
The image shows a roller coaster car at five positions along its track.
For which parts of the motion is some part of the kinetic energy of the car transformed into potential energy?
Moving from 1 to 2 and 4 to 5
500
A rock with a mass of 5 kg is sitting on a cliff 20 meters high. What is the potential energy of the rock?
Gravity=9.8 m/s
980J