Forces and magnetism

What is the force that opposes the motion of an object when it is in contact with another object?

• Friction

• Upthrust

• Magnetic force

• Water resistance

What is the force that pulls objects towards the center of the Earth?

• Gravity

• Friction

• Magnetism

• Air resistance

What type of material is attracted to a magnet?

• Wood

• Plastic

• Iron

• Glass

Which type of satellite is launched by humans for various purposes such as communication and navigation?

• Natural satellites

• Artificial satellites

• Geostationary satellites

• Polar satellites

What is the force exerted by a magnet on certain materials such as iron and steel?

• Magnetic force

• Gravity

• Friction

• Air resistance

What is the force that keeps the moon in orbit around the Earth?

• Friction

• Gravity

• Magnetic force

• Air resistance

What is the force that causes an object to float in a liquid?

• Friction

• Upthrust

• Magnetic force

• Water resistance