Answers to AQA GCSE Pressure acting on a surface
Practice questions
1.Define the term pressure.
Pressure is defined as the amount of force per unit area.
2. A tennis ball impacts a wall with a force of 60N, the contact area is 0.01m2. Calculate the pressure applied to the wall by the ball.
Pressure = Force/Area
Pressure = 60N/0.01m2
Pressure = 6000Pa
3.Use the image below to answer the following question.
A cupboard weighing 500 N is positioned on the floor with its side that has the largest surface area in contact with the ground. Calculate the pressure the cupboard exerts on the ground.
The side of the cupboard with largest surface area has dimensions of 150cm x 100cm. This would be placing the cupboard on its back.
100cm =1m, 150cm = 1.5m
Area of largest side = 1m x 1.5m =1.5m2
Pressure = Force/Area
Pressure = 500N/1.5m2
Pressure = 333Pa
1.Define the term pressure.
Pressure is defined as the amount of force per unit area.
2. A tennis ball impacts a wall with a force of 60N, the contact area is 0.01m2. Calculate the pressure applied to the wall by the ball.
Pressure = Force/Area
Pressure = 60N/0.01m2
Pressure = 6000Pa
3.Use the image below to answer the following question.
A cupboard weighing 500 N is positioned on the floor with its side that has the largest surface area in contact with the ground. Calculate the pressure the cupboard exerts on the ground.
The side of the cupboard with largest surface area has dimensions of 150cm x 100cm. This would be placing the cupboard on its back.
100cm =1m, 150cm = 1.5m
Area of largest side = 1m x 1.5m =1.5m2
Pressure = Force/Area
Pressure = 500N/1.5m2
Pressure = 333Pa
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