What is energy? (answer in a few words)
Potential & Kinetic Energy
Potential energy is energy stored in an object due to its position or state. Kinetic energy is energy an object has due to its motion. When an object changes position or state, potential energy is converted to kinetic energy.
calculating potential and kinetic energy
Potential Energy: Energy that is stored and waiting to be used. It can be caused by objects being at different heights, having different amounts of charge, or by being stretched or compressed.
Kinetic Energy: Energy that is caused by an object in motion. It is the energy of an object due to its motion.
Law of Conservation of Energy: The law that states that energy cannot be created or destroyed, only transferred from one form to another.
Did you know?
Potential energy is the energy stored in an object due to its position relative to other objects. For example, a rock sitting at the top of a hill has potential energy that it gains from the gravity pulling it down. Kinetic energy is the energy of an object in motion. The faster an object moves, the more kinetic energy it has. The Law of Conservation of Energy states that energy can neither be created nor destroyed, but can only be changed from one form to another. This means that when potential energy is converted into kinetic energy, the same amount of energy will remain.
What is the difference between potential and kinetic energy?
What factors affect the potential and kinetic energy of an object?
How do potential and kinetic energy influence each other?
How does potential energy help us understand motion?
Brain break: Draw a bananasaur - a dinosaur with banana-shaped spikes on its back.
In pairs: Select one task
Question: A ball is rolling across the floor. How can you calculate its potential and kinetic energy?
Potential energy is the energy of a body by virtue of its position. Kinetic energy is the energy of a body by virtue of its motion. The formula for kinetic energy is 1/2mv^2.
A: Work in pairs to create a drawing that explains potential and kinetic energy. B: Explain the process of calculating potential and kinetic energy using the ball example.
Which of the following is an example of potential energy?
- A falling apple
- A stretched rubber band
- A moving car
Which equation is used to calculate potential energy?
- F = ma
- PE = mgh
- KE = 1/2mv^2
What does 'm' stand for in the potential energy equation?
What is the unit of measurement for kinetic energy?
- Meters per second (m/s)
- Kilograms (kg)
- Joules (J)
In which situation would you expect to see an increase in kinetic energy?
- An object rolling down a hill
- An object sitting on a shelf
- An object being lifted upwards
What is the formula for calculating kinetic energy?