Science Mid Yearly Revision

Front

What do we use to show the direction and strength of forces?

Back

Arrows are used to represent the direction and strength of forces.

Front

Which of the following is NOT a celestial body? airplane, comets, moons, stars

Back

Airplane is not a celestial body.

Front

Why is the Sun classified as a star?

Back

The Sun is classified as a star because it produces its own light.

Front

Earth rotates in which direction?

Back

Earth rotates anticlockwise.

Front

What force keeps a ship afloat?

Back

The force that keeps a ship afloat is called upthrust.

Front

What is a celestial body?

Back

A celestial body is any natural object outside of Earth's atmosphere, such as stars, planets, and moons.

Front

What is gravity?

Back

Gravity is the force that attracts two bodies towards each other, such as the Earth attracting objects towards its center.

Front

What is the difference between mass and weight?

Back

Mass is the amount of matter in an object, while weight is the force exerted by gravity on that mass.

Front

What is the role of the Sun in our solar system?

Back

The Sun provides light and heat, which are essential for life on Earth and helps to keep the planets in orbit.

Front

What is upthrust?

Back

Upthrust, also known as buoyancy, is the upward force exerted by a fluid that opposes the weight of an object immersed in it.