KE
A 2 kg ball is moving at 4 m/s.
Calculate its kinetic energy.
What is 16 J?
A 3 kg backpack is sitting 4 meters above the ground.
Calculate its gravitational potential energy.
What is 120 J?
A 5 kg ball is sitting on a 6 m-high shelf.
Does this problem require KE or GPE to solve?
What is GPE?
What type of energy is stored in the rubber band?
What is Elastic?
A 5 kg object is moving at 6 m/s.
Calculate its kinetic energy.
What is 90 J?
A 5 kg object is 8 meters above the ground.
Calculate its GPE.
What is 400 J?
A 4 kg ball is rolling at 5 m/s.
Does this problem require KE or GPE? Then calculate the energy.
What is KE and 50 J?
The rubber band is released and the car begins moving.
What type of energy does the moving car have?
What is Kinetic?
Car A has a mass of 1,000 kg and is traveling at 10 m/s. Car B has a mass of 500 kg and is traveling at 20 m/s.
Which car has more kinetic energy? Show your calculations.
What is Car B?
Car A: 50,000 J
Car B: 100,000 J
Backpack A has a mass of 4 kg and is 5 m above the ground.
Backpack B has a mass of 4 kg and is 9 m above the ground.
Which backpack has more GPE? Calculate both.
What is Backpack B?
A: 200 J
B: 360 J
A 2 kg ball is moving at 10 m/s.
A 5 kg backpack is sitting 4 m above the ground.
Which has more energy: the ball's KE or the backpack's GPE? Calculate both.
What is the backpack?
Ball: 100 J
Backpack: 200 J
A roller coaster is sitting at the top of a hill and then begins traveling downhill.
What happens to its gravitational potential energy and kinetic energy?
What is GPE decreases while KE increases?
Object A has a mass of 4 kg and travels at 10 m/s. Object B has a mass of 8 kg and travels at 7 m/s.
Which object has more kinetic energy?
What is Object A?
A: 200 J
B: 196 J
Object A has a mass of 10 kg and is 4 m above the ground.
Object B has a mass of 5 kg and is 9 m above the ground.
Which object has more GPE? Show your calculations.
What is Object B?
A: 400 J
B: 450 J
A 4 kg object is traveling at 10 m/s.
Another 4 kg object is 20 m above the ground.
Which object has more energy?
What is the Elevated Object?
Moving: 200 J
Elevated: 800 J
Name 5 different types of energy.
What is Thermal, Elastic, Electrical, Electromagnetic, Chemical, Sound, Nuclear, Gravitational Potential Energy, and Kinetic (Motion)?
A 2 kg ball has 36 J of kinetic energy.
A second 4 kg ball is traveling at half the speed of the first ball.
Which ball has more kinetic energy? Calculate both to prove your answer.
What is the first ball?
First Ball: 36 J
Second Ball: 18 J
A 2 kg object is 20 meters above the ground.
A 10 kg object is 5 meters above the ground.
Which has more gravitational potential energy?
What is Object B?
A: 400 J
B: 500 J
Object A has a mass of 10 kg and is moving at 10 m/s.
Object B has a mass of 5 kg and is 8 m above the ground.
Which has more energy? Show all of your work.
What is Object A?
A: 500 J
B: 400 J
Striking a match and using it to light a candle.
Trace the major energy changes from the beginning to the end.
What is Kinetic Energy (moving the match) → Thermal Energy (Heat) → Chemical Energy (Stored in the match) → Thermal Energy (Chemicals heating and lighting the candle → Electromagnetic/Light Energy?