Forces and Fields

An object’s weight...

• is caused because it is pulled towards the Earth.

• is caused by the Earth’s magnetic field.

• is caused by the air pushing down on it.

• stays the same, even if its mass changes.

Tags

NGSS.MS-PS2-4

NGSS.MS-PS2-5

The direction ‘down’ is:

• the same everywhere.

• at right angles to the ground.

• towards the centre of the Earth.

• different under water.

Which statement is not true?

• The Earth attracts objects because it has a large mass.

• You are attracting this laptop with a small force of gravity.

• Only large objects like the Earth produce a force of gravity.

• Your body is pulling the Earth towards it.

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-4

NGSS.MS-PS2-5

A bag of sugar has a mass of 1 kg. What is its weight?

• 1N

• 10N

• 1kg

• 0.1N

Tags

NGSS.HS-PS2-1

Gravity is less on the Moon than on the Earth because:

• the Moon is smaller than the Earth.

• the Moon has a bigger mass than the Earth.

• the Moon is bigger than the Earth.

• the Moon has less mass than the Earth.

Tags

NGSS.MS-PS2-4

On Mars, the strength of gravity is 9 N/kg. If your mass is 50 kg, how much would you weigh on Mars?

• 450 N

• 90 N

• 50 N

• 45 N

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-4

Gravity:

• gets less if two objects get closer together.

• gets bigger if two objects get further apart.

• gets less if two objects get further apart.

• does not depend on distance.

Which statement is true?

• Gravity always pulls a spacecraft towards the nearest planet.

• There is no gravity in space.

• Gravity is the same at all times during a space journey.

• Gravity depends on how close a spacecraft is to a planet.

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4