Force and Motion

Front

What is the difference between mass and weight?

Back

Mass is the amount of matter in an object, which remains constant regardless of location. Weight is the force exerted by gravity on that mass, which can change depending on the gravitational pull of the planet.

Front

What does Newton's Third Law of Motion state?

Back

For every action, there is an equal and opposite reaction.

Front

What is friction?

Back

Friction is a force that opposes the motion of an object, caused by the contact between two surfaces.

Front

What is gravitational force?

Back

Gravitational force is the attraction between two masses, which causes objects to be pulled towards each other.

Front

What is inertia?

Back

Inertia is the tendency of an object to resist changes in its state of motion. 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 formula for calculating weight?

Back

Weight (W) = Mass (m) × Gravitational acceleration (g). On Earth, g is approximately 9.8 m/s².

Front

What is the role of a springboard in a dive?

Back

A springboard provides an upward force that propels the diver into the air when they push down on it.

Front

What is the force of motion that allows bicycles to slow down when brakes are applied?

Back

The force of friction between the brake pads and the tire slows down the bicycle.

Front

What is the net force?

Back

Net force is the total force acting on an object after all the forces are combined. It determines the object's acceleration.

Front

What is balanced force?

Back

Balanced forces are equal in size and opposite in direction, resulting in no change in motion.