24 - 25 MRJH Fall Final Review

Front

What is magnetic force?

Back

Magnetic force is the attraction or repulsion that arises between electrically charged particles due to their motion. It is one of the four fundamental forces of nature.

Front

What is applied force?

Back

Applied force is the force that is applied to an object by a person or another object. It is the force that causes an object to move or change its motion.

Front

What is normal reaction force?

Back

Normal reaction force is the support force exerted upon an object that is in contact with another stable object. It acts perpendicular to the surface of contact.

Front

What does it mean that forces come in pairs?

Back

For every action, there is an equal and opposite reaction. This means that forces always occur in pairs, where one force is the action and the other is the reaction.

Front

What is gravitational force?

Back

Gravitational force is the attractive force that pulls two masses toward each other. It is the force that keeps planets in orbit around the sun.

Front

What is the relationship between force and motion?

Back

Force is a push or pull that can cause an object to accelerate, change direction, or change shape. Motion occurs when an object moves from one position to another due to the application of force.

Front

What is tension force?

Back

Tension force is the force that is transmitted through a string, rope, or cable when it is pulled tight by forces acting from opposite ends.

Front

What is the difference between contact and non-contact forces?

Back

Contact forces require physical contact between objects (e.g., friction, tension), while non-contact forces act at a distance (e.g., gravitational, magnetic).

Front

What is friction?

Back

Friction is the force that opposes the motion of an object. It occurs when two surfaces are in contact and can be affected by the nature of the surfaces and the force pressing them together.

Front

What is the role of air resistance?

Back

Air resistance is a type of friction that acts against the motion of an object moving through air. It increases with speed and affects how quickly an object can fall.