A car is driving round a circular track at constant speed. Explain why the car is said to be accelerating when its speed is constant.
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Card 7
Front
The force that keeps a car moving in a circle is known as centripedal force. The centripedal force acting on the car would be ............. if the car was travelling at the same constant speed but with three extra passengers in the car.
Back
Card 8
Front
The centripedal force acting on the car would be ........................ if the car was travelling at the same constant speed but on a track with a smaller radius.
Back
Card 9
Front
The diagram shows a simple hydraulic system containing fluid. A force of 175N is applied to piston 1, which has cross-sectional area of 0.25m . Calculate the pressure created at the first piston.
Back
Card 10
Front
Piston 2 has a cross-sectional area of 1.3m . Calculate the force acting on piston 2.
