Kinetic Energy
What is the formula to solve for kinetic energy?
KE = (mass * velocity2) / 2
What is the formula to solve for gravitational potential energy?
GPE = weight * height
What is the kinetic energy of a 2,000 kg bus that is moving at 25 m/s?
625,000 J
What is the gravitational potential energy of a book with a weight of 13 N at a height of 1.5 m off the ground?
19.5 J
The total of an object's kinetic energy plus its potential energy.
Mechanical energy
Two motorboats are traveling down a river. Motorboat 1 has a mass of 6,000 kg, and motorboat 2 has a mass of 1,500 kg. They are traveling at the same speed. Which motorboat has greater kinetic energy?
Motorboat 1
A child is sliding down a slide at a park. At which point on the slide will the child have the most potential energy - the top, the middle, or the bottom?
The top
What is the kinetic energy of a 0.50 kg hammer that hits the floor at a speed of 10 m/s?
25 J
What is the potential energy of a 300 N rock climber standing 100 m from the base of a rock wall?
30,000 J
All the kinetic energy from the movement of the particles in an object
Thermal energy
Two cars that are identical are traveling on the same road. Car #1 is traveling at a speed of 78 km/hr, and the Car #2 is traveling at a speed of 106 km/hr. Which car has more kinetic energy?
Car #2
Rocks A and B are located at the same height on top of a hill. The mass of rock A is twice the mass of rock B. Which rock has more potential energy?
Rock A
What is the kinetic energy of a car that has a mass of 1,000 kg and is moving at a speed of 20 m/s?
200,000 J
A book weighs 16 N and is placed on a shelf that is 2.5 m from the ground. What is the gravitational potential energy of the book?
40 J
The energy stored in the chemical bonds that hold the compounds together.
Chemical energy
A roller coaster travels down the first hill. At which point of the hill does the coaster have the most kinetic energy - the top, the middle, or the bottom?
The bottom
TRUE or FALSE
Potential Energy can also be in the form of magnetic or electrical energy.
True
16,785 J
What is the gravitational potential energy of a gymnast who weighs 450 N hanging from an uneven bar that is 2.5 m off the ground?
1,125 J
Electrical energy
Three people are riding an elevator. Person A has a mass of of 78 kg, Person B has a mass of 31 kg, and Person C has mass of 54 kg. Rank the three people in order of most kinetic energy from least kinetic energy.
Person A
Person C
Person B
Two tennis balls are being dropped from different heights. The first tennis ball is being dropped from 10 meters, and the second tennis ball is being dropped from 5 meters. Which tennis ball has more potential energy?
A dog is running at 7 m/s. It has a mass of 2800 grams. What is the kinetic energy of the dog?
68.6 J
A balloon is 0.8 km in the air. It has a weight of 10 N. What is the gravitational potential energy of the balloon?
8000 J
Energy stored in the nucleus of an atom.
Nuclear energy