Newton's 1st & 2nd Law of Motion

Front

What is Newton's 1st Law of Motion?

Back

An object at rest stays at rest, and an object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force.

Front

What is Newton's 2nd Law of Motion?

Back

The acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its mass. (F = ma)

Front

What is the formula to calculate force?

Back

Force (F) = mass (m) × acceleration (a)

Front

What is inertia?

Back

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

Front

What unit is force measured in?

Back

Force is measured in Newtons (N).

Front

If a 0.5 kg object accelerates at 10 m/s², what is the force?

Back

5 Newtons (F = 0.5 kg × 10 m/s²).

Front

What happens to the acceleration of an object if the force applied is increased?

Back

The acceleration of the object increases.

Front

What is the relationship between mass and acceleration in Newton's 2nd Law?

Back

As mass increases, acceleration decreases if the force remains constant.

Front

What is an example of an unbalanced force?

Back

A person pushing a stationary car to get it moving.

Front

What is the effect of friction on motion?

Back

Friction opposes the motion of an object, acting as an unbalanced force.