Forces and Motion Concepts

Front

What force opposes the motion of a paraglider?

Back

Air resistance is the force that opposes the motion of a paraglider, acting against the direction of its flight.

Front

Why is it harder for the boy in Image B to get down the hill?

Back

Friction is the force that resists the sliding motion of the boy down the hill, making it harder for him to descend.

Front

What is an applied force?

Back

An applied force is a contact force that is applied to an object by a person or another object.

Front

What does Newton's third law state?

Back

Newton's third law states that for every action, there is an equal and opposite reaction.

Front

What is Newton's First Law known as?

Back

Newton's First Law is known as the Law of Inertia, which states that an object at rest stays at rest and an object in motion stays in motion unless acted upon by a net external force.

Front

What is the definition of friction?

Back

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

Front

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

Back

Contact forces require physical contact between objects, while non-contact forces act at a distance without physical contact.

Front

What is gravitational force?

Back

Gravitational force is the attractive force between two masses, such as the Earth and an object.

Front

What is the formula for calculating force?

Back

The formula for calculating force is F = m * a, where F is force, m is mass, and a is acceleration.

Front

What is inertia?

Back

Inertia is the tendency of an object to resist changes in its state of motion.