Recognizing Force Types

What is a force?

• a push

• a pull

• a push or a pull

• neither a push nor pull

What is the metric or SI Unit for force?

• Meter [m]

• Pounds [lbs]

• Newton [N]

• Kilogram [kg]

Do two interacting objects have to touch in order to have a force between them?

• Yes

• No

What are some examples of contact forces? Select all that apply.

• Friction

• Gravity

• Normal Force

• Magnetic Force

• Air Resistance

What are some examples of action-at-a-distance forces? Select all that apply.

• Gravity

• Friction

• Normal Force

• Electromagnetic Force

• Applied Force

This force is most noticeable for objects traveling at high speeds through an atmosphere and/or has a large surface area.

• Friction

• Tension

• Spring Force

• Air Resistance

This force is exerted on an object when the object is contact with another stable object (e.g, book on a tablerot person leaning against a wall).

• Normal Force

• Friction

• Air Resistance

• Applied

This force is transmitted through a string, rope, cable, or wire when it is pulled tight by forces acting on opposite ends.

• Normal Force

• Tension

• Gravity

• Spring Force

This force is exerted by a surface when an object moves or makes an attempt to move across the surface.

• Air Resistance

• Normal Force

• Friction

• Applied Force

This force arises when any object with mass attracts another object with mass. It is most noticeable with large bodies of mass such as the Earth or moon. This force is also known as weight.

• Gravity

• Normal Force

• Applied Force

• Spring Force