P2.3.5 - Pressure on Solids Flashcards Preview

SHHS - Science - P2.3 - Motion and Pressure - Year 8 > P2.3.5 - Pressure on Solids > Flashcards

Flashcards in P2.3.5 - Pressure on Solids Deck (10)
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1

How can we calculate are using the pressure equation?

Area = Force ÷ Pressure

2

How do we calculate pressure?

Pressure = Force ÷ Area

3

What are the units of pressure?

Newton per metres squared (N/m2)

or

Newtons per centimetres squared (N/cm2)

4

If your decrease the area that a force is acting over you will ______ the pressure.

If your decrease the area that a force is acting over you will increase the pressure.

5

Define pressure.

When a force acts over an area.

6

When you stand on a surface you exert a ______ on the surface.

pressure

7

How can we calculate force using the pressure equation?

Force = Pressure x Area

8

If you increase the area that a force is acting over you will ______ the pressure.

If your increase the area that a force is acting over you will decrease the pressure.

9

What is the force that is acting on the ground where you stand?

Your weight

10

A hydraulic jack is a machine that is used to lift cars. See diagram below. Describe and explain what would happen if there were bubbles of air in the oil.

  • The output cylinder under the car would not move up
  • Because when you press the handle you compress the oil
  • So the air bubbles would be compressed and the force would not be transmitted