Question

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lo: describe the different types of forces and classify these forces as contact or noncontact forces.
input notes
types of forces
there are two major types of forces:

1. contact force: a force that results when two objects physically touch each other
2. non-contact force: a force that results even when two objects do not physically touch each other. a non-contact force is also called an at-a-distance force.

contact forces

1. applied force: a force applied by a person or object that causes a second person or object to move. for example, a person pushes or pulls an object to change its motion.
2. friction: a force that opposes motion. this force works in the opposite direction of a moving object.

non-contact forces

1. gravitational force (gravity): a force of attraction between two objects. we only notice the gravitational force (or gravity) of very large objects such as stars and planets.
2. electric force: a force exerted by electrically charged particles or objects.
3. magnetic force: a force exerted by magnets.

directions: define the different types of forces. then sort the forces as examples of contact or non-contact force.
applied force
friction
gravity
magnetic force
electric force

Explanation:

• Applied force: A force applied by a person or object that causes a second person or object to move.
• Friction: A force that opposes motion. This force works in the opposite direction of a moving object.
• Gravity: A force of attraction between two objects. We only notice the gravitational force (or gravity) of very large objects such as stars and planets.
• Magnetic force: A force exerted by magnets.
• Electric force: A force exerted by electrically charged particles or objects.

Answer:

• Applied force: A force applied by a person or object that causes a second person or object to move.
• Friction: A force that opposes motion. This force works in the opposite direction of a moving object.
• Gravity: A force of attraction between two objects. We only notice the gravitational force (or gravity) of very large objects such as stars and planets.
• Magnetic force: A force exerted by magnets.
• Electric force: A force exerted by electrically charged particles or objects.