Physics Revision

• Physics
• Lower Secondary (Key Stage 3)

Year 8 Revision - Weight 

What is the unit of weight?

1. Joules
2. Kilogram
3. Newtons
4. Metres

What is the definition of weight?

1. The effect of gravity on mass
2. The amount of matter in an object
3. The amount of gravity in an object
4. The effect of mass on gravity

The quantity of matter in an object.

1. Mass
2. Weight

Is measured with Newtonmeter.

1. Mass
2. Weight

Will change on different planets/moons.

1. Mass
2. Weight

Is a force

1. Mass
2. Weight

Is measured in kilograms.

1. Mass
2. Weight

Would be the same on Mars.

1. Mass
2. Weight

How could I change my mass? How could I change my weight?

How would the moon's gravitational field strength compare to the Earth's?

What equation links gravitational field strength, mass and weight?

Which of the following statements are correct?

1. The bigger the object, the smaller the gravitational field
2. The bigger the object, the bigger the gravitational field
3. Weight is directly proportional to mass
4. Weight is inversely proportional to mass

Calculate the weight on an object that has a mass of 10 kg, assuming 9.8 N/kg

Find the mass of a child on Earth with a weight of 400N. (g = 10 N/kg)?

Particle Model of Matter

States of Matter

Solid

Liquid

Gas

Match the diagrams with the correct description.

Are these physical changes or chemical reactions?

Physical change

Chemical reaction

Melting butter

Dissolving salt in water

Burning a bonfire

Freezing water

Adding Mentos to Coca Cola

Baking a cake

An explosion