An object has a mass of 50 kg.

The gravitational field strength on Earth is 10.0 N/kg.

The gravitational field strength on a distant planet is 4.0 N/kg.

What is the weight of the object on Earth, and what is its weight on the distant planet?

• A

• B

• C

• D

An astronaut in an orbiting spacecraft experiences a force due to gravity. This force is less than when she is on the Earth's surface.

Compared with being on the Earth’s surface, how do her mass and her weight change when she

goes into orbit?

• A

• B

• C

• D

A car travels 100km. The journey takes two hours. The highest speed of the car is 80km/ h, and

the lowest speed is 40km/ h.

What is the average speed for the journey?

• 40 km/h

• 50 km/h

• 60 km/h

• 120 km/h

Weight is an example of which quantity?

• acceleration

• force

• mass

• pressure

The mass of an object is measured on Earth. The mass is 5.0kg.

The object is taken to the Moon. The mass of the object is measured on the Moon.

What is the mass of the object on the Moon?

• 0 kg

• more than 0 kg but less than 5.0 kg

• 5.0 kg

• more than 5.0 kg

Which statement about mass or weight is correct?

• Mass is a force.

• Mass is measured in newtons.

• Weight is a force.

• Weight is measured in kilograms.

What is the weight of an object?

• the force of gravity on the object

• the gravitational potential energy of the object

• the internal energy of the object

• the mass of the object

A customer goes to a market and buys some rice. The stallholder pours rice into a dish that

hangs from a spring balance. He records the reading on the spring balance.

The customer then buys some pasta and the stallholder notices that the reading on the spring

balance, with just pasta in the dish, is the same as it was with just rice in the dish.

The rice and the pasta must have the same .......

• density

• temperature

• volume

• weight

Two blocks of metal X and Y hang from spring balances, as shown in the diagrams.

What does the diagram show about X and Y?

• They have the same mass and the same volume but different weights.

• They have the same mass and the same weight but different volumes.

• They have the same mass, the same volume and the same weight.

• They have the same weight and the same volume but different masses.

A child sits on a rubber ball and bounces up and down on the ground.

What stays the same when the ball hits the ground?

• the acceleration of the ball

• the mass of the ball

• the shape of the ball

• the velocity of the ball