Vocabulary
Descriptions
PE challenge
KE Challenge
100
This is the energy of moving objects
What is kinetic energy?
100
If a skateboarder starts at point W, this would describe their energy at point W. (assume no friction or air resistance)
What is 100% potential energy? (or maximum potential energy)
100
If two identical objects are held above the ground at the same height, how does their potential energy compare?
They are the same!
100
If two objects with the same mass travel at the same speed, how does their kinetic energy compare?
They have the same amount of kinetic energy.
200
This is stored energy (or energy that can change to kinetic)
What is potential energy?
200
If a skateboarder starts at point W, and skates towards the right, this would describe their energy at point Z. (assume no friction or air resistance)
What is 100% potential energy? (or maximum potential energy)
200
If two objects are held above the ground at the same height, object A has a mass of 100 g and object B has a mass of 50 g, which object has more potential energy?
Object A
200
Object Y has a mass of 200 g and object Z has a mass of 100 g. If they both travel EXACTLY the same speed- which will have higher kinetic energy?
Object Y
300
"Energy can never be created or destroyed"
What is the Law of Conservation of Energy?
300
If a skateboarder starts at point W, and skates towards the right, this would describe their energy at point X. (assume no friction or air resistance)
What is (approximately) 50% potential energy and 50% kinetic energy?
300
Two objects have the exact same mass; object A is held 100 m above the ground and object B is held 200 m above the ground. Which object has more potential energy?
Object B
300
Object Y travels 10 m/s and object Z has a mass of 100 m/s. If they both have EXACTLY the same mass- which will have higher kinetic energy?
Object Z
400
When an object is held above the ground, it has which specific type of potential energy
What is gravitational potential energy
400
If a skateboarder starts at point W, and skates towards the right, this would describe their energy at point Y. (assume no friction or air resistance)
What is (approximately) 50% potential energy and 50% kinetic energy?
400
Two objects have the exact same mass; object A is held 100 m above the ground and object B is held 200 m above the ground. When each ball is about to hit the ground, which one has more kinetic energy?
Object B
400
If a skateboarder travels down a ramp, and gets to the bottom with a kinetic energy of 100 J- how much potential energy will they have when they get back to the top of the ramp? (assume no friction or air resistance)
100 J
500
Because there are only 2 categories of energy, which type of energy can electrical energy be categorized as?
Kinetic energy (electrical energy is the movement of electrons in a wire)
500
If a skateboarder starts at point W, and skates towards the right, where would the skater have their maximum kinetic energy. (assume no friction or air resistance)
What is in the middle of the ramp? ( halfway between x and y)
500
If two objects are held above the ground at the same height, object A has a mass of 100 g and object B has a mass of 50 g, when they are dropped, which object hits the ground first?
They hit at the same time!
500
A sled rider is exactly halfway down a hill. She has exactly 25 J of Potential Energy and 25 J of Kinetic Energy. How much kinetic energy will she have at the bottom of the hill? (assume no friction or air resistance)
50 J