what are the energy changes when a car rolls from the top of a hill to the bottom? Name two forces that would slow the acceleration of the car?

At first as the car is on the top of the hill, it has GRAVITATIONAL POTENTIAL ENERGY

As the car rolls down the hill, GRAVITATIONAL POTENTIAL ENERGY changes to KINETIC ENERGY.

Friction and Air resistance

SW

Related Physics GCSE answers

All answers ▸

It takes 1.8s to drop a ball of a bridge. How high is the bridge and what speed is reached?


What is thermionic emission?


An electric heater has a power of 1000W. It is connected to mains electricity (230V). The heater is equipped with an Earth wire. a) Calculate the current in the heater. b) Explain the role of the earth wire as a safety feature.


In an isolated container contains 1kg of ice at 0 oC. 1kg of warm water (323K) is poured into the container. How much ice (in kgs) remains after the system returns to thermal equilibrium? (by the end of the process?)