First Test Of Year 9 Flashcards Preview

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Flashcards in First Test Of Year 9 Deck (18)
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1
Q

How many mm are in 1 cm?

A

10

2
Q

How many mm in 1m?

A

1000

3
Q

How many cm in 1m?

A

100

4
Q

How many cm squared in 1m squared

A

10000

5
Q

How many cm cubed in 1m cubed?

A

1000000

6
Q

What is the standard unit of length, area, and volume?

A

Metres, metre squared, metre cubed

7
Q

How do you find density?

A

Density = mass
———-
Volume

8
Q

What is the triangle for density, mass and volume?

A

M
——————
p x V

9
Q

What are the standard units for density?

A

Kg and m cubed, giving a standard unit for density being kg/m cubed

Sometimes it’s easier to use g and cm cubed, so an alternative unit is g/cm cubed

10
Q

What are some units for mass?

A

Mg, g, kg, tonnes

11
Q

What is the standard unit for force?

A

N

12
Q

What happens to objects with mass?

A

They are attracted to each other

13
Q

How do you increase the attraction between two objects?

A

The greater the mass and the closer they are together

14
Q

What is the gravitational force that pulls you down towards the centre of the earth?

A

Weight

15
Q

What is mass?

A

How much mass an object contains

16
Q

Does mass change?

A

No

17
Q

Does weight change?

A

Yes

18
Q

How do you find weight?

A

W=mg (weight = mass x gravitational field strength