Front

What is a Contact Force?

Back

A force that requires physical contact between two objects, such as friction, tension, and air resistance.

Front

What is a Non-Contact Force?

Back

A force that acts at a distance without physical contact, such as gravitational force, magnetic force, and electric force.

Front

What is the difference between Mass and Weight?

Back

Mass does not change with gravity; weight changes depending on the gravitational field.

Front

What happens to electric force as distance increases?

Back

As distance increases, the electric force decreases.

Front

What is Air Resistance?

Back

A contact force that opposes the motion of an object through air.

Front

What remains constant in different gravitational fields?

Back

Mass remains constant regardless of the gravitational field.

Front

What is an example of a Non-Contact Force?

Back

Gravitational force is an example of a non-contact force.

Front

What is Friction?

Back

A contact force that opposes the relative motion of two surfaces in contact.

Front

What is Tension?

Back

A contact force that is transmitted through a string, rope, or wire when it is pulled tight.

Front

What is the role of gravity in weight?

Back

Weight is the force exerted by gravity on an object, which can change with different gravitational fields.