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Numeracy in Science – Rearranging Numeracy in Science – Rearranging

Numeracy in Science – Rearranging - PowerPoint Presentation

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Numeracy in Science – Rearranging - PPT Presentation

equations and formulae Equations and formulae are used in Physics Chemistry and Biology Sometimes you will need to rearrange them to work something out To rearrange them you need to understand what they mean ID: 498609

formulae equations science speed equations formulae speed science rearranging experiment numeracy calculating rearrange work formula shown force measure written calculate rearranged answer

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Presentation Transcript

Slide1

Numeracy in Science – Rearranging

equations and formulae

Equations and formulae are used in Physics, Chemistry and Biology. Sometimes you will need to rearrange them to work something out.To rearrange them, you need to understand what they mean.The formula for calculating speed is shown on the right. What does it mean?

A

 

B

 

C

 

D

 

 

Experiment to measure the speed of an objectSlide2

Numeracy in Science – Rearranging

equations and formulae

You rearrange an equation when what you want to work out is not the subject. In the equation below, “power” is the subject. If I wanted to work out “voltage” or “current”, I would need to rearrange it.A

 

B

 

C

 

D

 

 

Experiment to measure the current in an electrical circuit and the voltage across resistors

What calculation do you think you would need to do to work out the voltage? (Remember, dividing is the reverse of multiplying).Slide3

T

he formula for calculating speed is shown on the right.

It can also be written as:Speed = distance ÷ timeHow could this be rearranged to calculate distance?

A

 

B

 

C

 

D

 

 

Experiment to measure the speed of an object

Numeracy in Science – Rearranging

equations and formulaeSlide4

T

he formula for calculating the pressure on a surface is shown on the right.

It can also be written as:pressure = force ÷ areaHow could this be rearranged to calculate force?

A

 

B

 

C

 

D  

 

Numeracy in Science – Rearranging

equations and formulae

Experiment to examine the effect of applying a force over different areasSlide5

T

he formula for calculating density is shown on the right.

It can also be written as:density = mass ÷ volumeHow could this be rearranged to calculate volume?

A

 

B

 

C

 

D

 

 

Numeracy in Science – Rearranging

equations and formulae

Experiment to compare the densities of different liquidsSlide6

Numeracy in Science – Rearranging

equations and formulae

Equations and formulae are used in Physics, Chemistry and Biology. Sometimes you will need to rearrange them to work something out.To rearrange them, you need to understand what they mean.The formula for calculating speed is shown on the right. What does it mean?

A

 

B

 

C

 

D

 

 

Experiment to measure the speed of an object

ANSWERSlide7

Numeracy in Science – Rearranging

equations and formulae

You rearrange an equation when what you want to work out is not the subject. In the equation below, “power” is the subject. If I wanted to work out “voltage” or “current”, I would need to rearrange it.A

 

B

 

C

 

D

 

 

Experiment to measure the current in an electrical circuit and the voltage across resistors

What calculation do you think you would need to do to work out the voltage? (Remember, dividing is the reverse of multiplying).

ANSWERSlide8

T

he formula for calculating speed is shown on the right.

It can also be written as:Speed = distance ÷ timeHow could this be rearranged to calculate distance?

A

 

B

 

C

 

D

 

 

Experiment to measure the speed of an object

Numeracy in Science – Rearranging

equations and formulae

ANSWERSlide9

T

he formula for calculating the pressure on a surface is shown on the right.

It can also be written as:pressure = force ÷ areaHow could this be rearranged to calculate force?

A

 

B

 

C

 

D  

 

Numeracy in Science – Rearranging

equations and formulae

Experiment to examine the effect of applying a force over different areas

ANSWERSlide10

T

he formula for calculating density is shown on the right.

It can also be written as:density = mass ÷ volumeHow could this be rearranged to calculate volume?

A

 

B

 

C

 

D

 

 

Numeracy in Science – Rearranging

equations and formulae

Experiment to compare the densities of different liquids

ANSWER