Exploring the Concept of Force

What is a force?

• A form of matter

• A type of energy

• A push or pull

• A visible object

Which instrument is used to measure force?

• Thermometer

• Barometer

• Speedometer

• Force meter

What is an example of a contact force?

• Gravity

• Electric force

• Magnetic force

• Friction

What does friction do?

• Changes the direction of motion

• Has no effect on motion

• Slows down motion

• Speeds up motion

What affects the amount of frictional force?

• Texture of the surfaces

• Color of the surfaces

• Size of the surfaces

• Temperature of the surfaces

What is gravity?

• A contact force

• A non-contact force

• A type of friction

• A form of energy

What balances the weight of our body when we stand on the ground?

• Normal force

• Magnetic force

• Gravitational force

• Frictional force

Which materials are magnetic?

• Iron, steel, and nickel

• Copper, aluminum, and gold

• Plastic, wood, and rubber

• Glass, ceramic, and paper

What force pulls a magnetic object towards a magnet?

• Magnetic attraction

• Frictional force

• Gravitational force

• Normal force

What force acts against the forward motion of a bicycle?

• Normal force

• Frictional force

• Magnetic force

• Gravity