Forces in Physics reading

How can forces in physics be categorized?

• Only into contact forces

• Only into non-contact forces

• Into contact and non-contact forces

• Into attractive and repulsive forces

Normal force is an example of a contact force that prevents objects from passing through each other. The normal force is a ___ force.

What is gravity responsible for?

• Repulsion between objects

• Friction between objects

• Attraction between objects with mass

• Heat transfer between objects

Name applications of magnetic force

• for compass to work

• to know the time

• to produce nuclear energy

• not here

Normal for is a contact force

• True

• False