Forces

What is friction?

• It is a resistance force
• Friction  does not exist
• It is an imaginary force
• It is red

Forces are usually shown as...

• dogs
• circles
• flashing electricity
• arrows

Tags

NGSS.HS-PS2-1

When objects remain in the same place, it is called...

• gravity
• friction
• balanced force
• unbalanced force

Tags

NGSS.3-PS2-1

What is the force that causes everything to be pulled down to the Earth?

• friction
• gravity
• balanced
• unbalanced

Tags

NGSS.MS-PS2-4

NGSS.MS-PS2-5

Some students wanted to find out if a tennis ball and a baseball dropped from the same height hit the ground at the same time. This investigation tests the effect of which of the following?

• wind

• friction

• gravity

• magnetism

Tags

NGSS.5-PS2-1

What is the force that causes objects to fall to Earth?

• Air resistance
• Gravity
• Water resistance
• Pressure

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-4

In which direction does gravity act?

• Downwards
• Upwards
• In all directions
• Towards the centre of the Earth

Tags

NGSS.5-PS2-1

What force does a parachute use to slow things down before hitting the ground?

• Friction
• Air resistance
• Water resistance
• Wind

When two objects rub together, what force do they produce

• Gravity
• Air resistance
• Friction
• Water resistance

Which of these uses friction?

• A parachute
• A ball falling through the sky
• Brakes on a bike
• A wind turbine