S1S2 Forces & Motion

Front

What does negative acceleration indicate about an object's motion?

Back

It means the object is slowing down.

Front

What is inertia?

Back

Inertia is the tendency of an object to keep moving or stay at rest unless acted upon by an external force.

Front

How do you calculate the speed of an object?

Back

Speed is calculated by dividing the distance traveled by the time taken.

Front

What is the difference between speed and velocity?

Back

Speed is a scalar quantity that refers to how fast an object is moving, while velocity is a vector quantity that includes both speed and direction.

Front

What happens to an object's inertia as its mass increases?

Back

An object with greater mass has greater inertia.

Front

If two objects are moving at the same speed but in opposite directions, how do their velocities compare?

Back

They have different velocities because velocity includes direction.

Front

What is the formula for calculating acceleration?

Back

Acceleration is calculated by dividing the change in velocity by the time taken.

Front

What is a net force?

Back

Net force is the total force acting on an object after all the forces are combined.

Front

What is the relationship between mass and weight?

Back

Weight is the force of gravity acting on an object's mass.

Front

What is the effect of friction on motion?

Back

Friction opposes motion and can slow down or stop moving objects.