# 9 L Pressure and Moments

Teacher recommended

## Slides in this set

### Slide 1

PRESSURE AND

MOMENTS

In This Topic We Will Learn About:

Calculating pressure.

The link between pressure, force and area.

Gas pressures.

Atmospheric pressure and pressure in liquids.

Moments as turning forces.

Pivots and turning forces.

Calculating moments.…read more

### Slide 2

PRESSURE AND MOMENTS

· Pressure is a measure of how much force is exerted on a given

area.

· It is about how concentrated the force is.

· Pressure is calculated by using this equation:

F

Pressure = Force P=F

Area A p A

· Pressure is measured in Newtons per square metre (N/m²) .

· Another name for Newtons per square metre is Pascals (Pa).

Pascal…read more

### Slide 3

PRESSURE AND MOMENTS

Decide which of the examples below show a

large pressure and which show a small

pressure.…read more

### Slide 4

PRESSURE AND MOMENTS

answers

Decide which of the examples below show a

large pressure and which show a small

pressure.

Large pressure.

Small pressure.

Large pressure. Large pressure.

Small pressure.

Small pressure.

There is a large pressure when the

force is concentrated on a small area.…read more

### Slide 5

PRESSURE AND MOMENTS

Pressure = Force p= F F

Area A

p A

Use the equation to work out the pressure produced when a man

weighing 600 N wears a pair of snowshoes with a total area of 1.5 m ².

p = F = 600 = 400 Pa

A 1.5

Don't forget to give the correct unit in your answer.…read more

### Slide 6

PRESSURE AND MOMENTS

Pressure = Force p=F

Area A F

Sometimes we need to re-arrange the equation to

p A

answer a question.

A box has a base with an area of 2 m².

It exerts a pressure of 300 Pa on the ground.

What is the weight of the box? Area of

base= 2 m²

F = p × A = 300 x 2 = 600 N

· Don't forget that weight is a force it is the force that

gravity makes an object exert on the Earth.

· Because it's a force, weight is measured in Newtons.…read more

### Slide 7

### Slide 8

### Slide 9

### Slide 10

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## Similar Science resources:

# 9 L Pressure and Moments

Teacher recommended

- Created by: laura_annie
- Created on: 01-04-13 12:27

## Slides in this set

### Slide 1

PRESSURE AND

MOMENTS

In This Topic We Will Learn About:

Calculating pressure.

The link between pressure, force and area.

Gas pressures.

Atmospheric pressure and pressure in liquids.

Moments as turning forces.

Pivots and turning forces.

Calculating moments.…read more

### Slide 2

PRESSURE AND MOMENTS

· Pressure is a measure of how much force is exerted on a given

area.

· It is about how concentrated the force is.

· Pressure is calculated by using this equation:

F

Pressure = Force P=F

Area A p A

· Pressure is measured in Newtons per square metre (N/m²) .

· Another name for Newtons per square metre is Pascals (Pa).

Pascal…read more

### Slide 3

PRESSURE AND MOMENTS

Decide which of the examples below show a

large pressure and which show a small

pressure.…read more

### Slide 4

PRESSURE AND MOMENTS

answers

Decide which of the examples below show a

large pressure and which show a small

pressure.

Large pressure.

Small pressure.

Large pressure. Large pressure.

Small pressure.

Small pressure.

There is a large pressure when the

force is concentrated on a small area.…read more

### Slide 5

PRESSURE AND MOMENTS

Pressure = Force p= F F

Area A

p A

Use the equation to work out the pressure produced when a man

weighing 600 N wears a pair of snowshoes with a total area of 1.5 m ².

p = F = 600 = 400 Pa

A 1.5

Don't forget to give the correct unit in your answer.…read more

### Slide 6

PRESSURE AND MOMENTS

Pressure = Force p=F

Area A F

Sometimes we need to re-arrange the equation to

p A

answer a question.

A box has a base with an area of 2 m².

It exerts a pressure of 300 Pa on the ground.

What is the weight of the box? Area of

base= 2 m²

F = p × A = 300 x 2 = 600 N

· Don't forget that weight is a force it is the force that

gravity makes an object exert on the Earth.

· Because it's a force, weight is measured in Newtons.…read more

### Slide 7

### Slide 8

### Slide 9

### Slide 10

## Comments

Good PP Presentation that covers the whole unit, with worked examples and questions to test understanding.

## Similar Science resources:

## Related discussions on The Student Room

- GCSE edexcel physics paper 2 (unofficial mark scheme) »
- As/A Level Results Day 2013 - 9 DAYS REMAINING »
- Clinical Vignette thread »
- Edexcel M2 - June 9th, 2015 [Exam discussion thread] »
- GCSE Results Day 2018 Thread - 5 MORE DAYS! »
- 10 Random Facts About Yourself »
- What were your "wow we're poor" or "wow we are well off" ... »
- The Snazzy, Brand Spanking New Year 9 (2013-2014) Thread »
- AQA CHEM4 A2 Chemistry - 9 June 2014 »
- OCR Chemistry A2 F324: Rings, Polymers and Analysis, 9 ... »

## Comments

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