Kinetic Energy (Physics) 3 Flashcards
Define kinetic energy. Calculate using the kinetic energy equation. Describe changes to and from kinetic energy
1
Q
What is Kinetic Energy?
A
The energy possessed by an object when it is moving
2
Q
What is the equation used for calculating kinetic energy?
A
Ek = 0.5 x m x v²
3
Q
State what each of the letters in the kinetic energy equation stand for
A
Ek = Kinetic Energy m = Mass v = Velocity (speed)
4
Q
State the units of measurement used for each action in the equation
A
Kinetic Energy = Joules (J)
Mass = kg
Velocity = metres per second (m/s)
5
Q
A car of mass 2500kg is travelling at 20 m/s. Calculate the energy in its kinetic energy store.
A
500 000 J
