Types of Energy
The energy something has because of its position above the earth’s surface
What is Potential Energy
The input and output energy of a lamp
What is electrical energy to light and heat energy
The unit of Potential Energy
What is a Joule
The unit of Kinetic Energy
What is a Joule
A 200-kg boulder is 1000-m above the ground. What is its potential energy when it is 1000-m above the ground?
What is 2,000,000 Joules
Then energy found in batteries.
What is chemical energy
Given a mass of 10kg, a height of 25m, and a gravity of 10 m/s^2. What is the Potential Energy.
What is 2500 Joules
Given a mass of 20 kg and a velocity of 3 m/s. Find the Kinetic Energy.
What is 90 Joules
A 200-kg boulder is 1000-m above the ground. What is its kinetic energy when it is 1000-m above the ground?
What is 0 Joules
This type of energy is found within atoms. Examples are fusion, fission, and radiation.
What is nuclear energy
Given a Potential Energy of 1000 Joules, a mass of 20 kg, and a gravity of 10 m/s^2, find the height.
What is 5 meters
Given a Kinetic Energy of 1000 Joules, a velocity of 5 m/s. Find the mass.
What is 80 kg
A 200-kg boulder is 1000-m above the ground. The boulder begins to fall. What is its potential energy when it is 500-m above the ground? Where did the “lost” potential energy go?
What is 1,000,000 Joules. What is Kinetic Energy
The energy of moving objects
What is kinetic energy
Given a Potential Energy of 10,000 Joules, a height of 100 meters, and a gravity of 10 m/s^2. Find the mass.
What is 100 kg
Given a Kinetic Energy of 500 Joules and a mass of 15 kg. Find the velocity.
What is 8.16 m/s
A 200-kg boulder is 1000-m above the ground. What is the kinetic energy of the boulder just before it hits the ground?
What is 2,000,000 Joules
The energy that we use to charge our phones.
What is electrical energy
Given a Potential Energy of 100 Joules, a mass of 2 kg, and a height of 5 meters. Find the gravity.
What is 10 m/s^2
Write the symbolic expression for velocity using the Kinetic Energy formula.
What is v = sqrt(2Ek/m)
A ball with mass of 2kg is dropped from the top of a building this is 30m high. What is the approximate velocity of the ball before it hits the ground.
What is 600 Joules