Grade 6 revision

Johnathan weighs 460 N on Earth.

Gravity on planet X is 1/4th of Earth's gravity.

What is Johnathan's weight on planet X?

• 230 N

• 57.5 N

• 92 N

• 115 N

Johnathan weighs 240 N on Earth.

Gravity on planet X is 1/8th of Earth's gravity.

What is Johnathan's weight on planet X?

Write only the number without units.

An object weighs 450 N on Earth.

Gravity is 10 N/kg.

What is the mass of the object?

Write only the number without units.

An object weighs 634 N on Earth.

Gravity is 10 N/kg.

What is the mass of the object?

Write only the number without units.

This is a picture of tinted water from the International Space Station.

Why is it so round in shape?

• The droplet does not experience gravity.

• The droplet does not experience gravity, but it has weight.

• The droplet does not have weight, but it still experiences gravity.

• A droplet of water cannot be round in shape in space.

Fill the gap in the sentence below with the name of a force.

In the answer field, separate the words with only one space.

Satellites which orbit the Earth do not travel away due to ..........................

However, they do not have ............................... while orbiting the planet.

Fill the gap in the sentence below with the name of a force.

In the answer field, separate the words with only one space.

When you throw a ball upwards, it gains ....................................... energy.

However, while it is falling down, it is gaining ................................ energy.

How did the Solar System form?

• A giant explosion.

• Colliding comets.

• A rotating cloud of gas and dust.

• A collapsing star.

The Solar System formed from a huge cloud of dust in the space.

This cloud was called a ......................................

What causes tides?

• Wind blowing across the ocean.

• The gravitational pull of the Moon and Sun.

• Earth’s rotation.

• Ocean currents.