Science - How do things move?

What is a force?

• A measure of time

• A push or a pull

• A type of energy

• A state of matter

What does gravity do?

• Pushes objects away from Earth

• Makes objects float in the air

• Has no effect on objects

• Pulls objects towards the center of the Earth

What happens to your weight on Jupiter compared to Earth?

• It stays the same

• It becomes less

• It becomes more

• It disappears

Who discovered gravity?

• Albert Einstein

• Isaac Newton

• Galileo Galilei

• Thomas Edison

Why is gravity on the Moon weaker than on Earth?

• The Moon is smaller than Earth

• The Moon is farther from the Sun

• The Moon has a different atmosphere

• The Moon has no water

Gravity is pulling him down, but which force is slowing his fall?

• Friction

• Magnetic Force

• Electrostatic force

• Air Resistance

How are car bodies designed to reduce air resistance?

• They are made heavier

• They are streamlined

• They are made taller

• They are painted with special colours

Air Resistance increases if you have

• less surface area

• more surface area

What does air resistance depend on?

• The colour of the object

• The mass of the object

• The shape and surface area of the object

• The temperature of the air

Which unit is used to measure force?

• Kilograms

• Newtons

• Litres

• Metres