# The Kinetic Energy of Objects

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• Created by: Curlot
• Created on: 30-09-13 18:20

## 1. Where does work done against a frictional force mainly transfer energy to ?

• It flies away as much more is created
• Into that tree down the road
• The Surroundings and Heats them
• Norwhere it's destroyed
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## 2. What is Gravitional Potential Energy ?(GPE)

• The Potential of Gravity anywhere it can change.
• The Gravity of the Earth (10N)
• GPE is the energy that an object has due to it's vertical position in the gravitational field.
• The amount of gravity that the Earth could potentailly have on an object due to it's height and a different gravitational field strength to that of Earth.

## 3. Kinetic Energy can be calculated using the equation :

• KE = I x F/g
• W= F x d
• E (k) = 1/2 x m x v(2)
• P= M x v

## 4. Gravitational Potential Energy can be calculated using...?

• W = F x d
• E(p) = m x g x h
• V = W / Q
• P= m x v

## 5. Which has More Kinetic energy; A car at 30 mph or a Lorry at 30 mph?

• Car - 30mph is quicker in a car than a lorry
• Niether there Kinetic Energy is equal.
• Lorry - it has a higher mass
• Car - It's more streamlined