Newton's Laws

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 Newton's 3rd Law of Motion?

Back

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

Front

What is the formula for force?

Back

F=ma

Front

What is the unit of force?

Back

Newton (N) - 1 Newton is the force required to accelerate 1 kg of mass at 1 m/s².

Front

What is the unit for mass?

Back

Kilogram (kg) - the standard unit of mass in the International System of Units (SI).

Front

What is the unit for acceleration?

Back

m/s² (meters per second squared) - the rate of change of velocity.

Front

If a 50 kg skater accelerates at 5 m/s², what force is applied?

Back

F = 50 kg x 5 m/s² = 250 N.

Front

If a 10 kg object accelerates at 15 m/s², what force is applied?

Back

F = 10 kg x 15 m/s² = 150 N.

Front

What is inertia?

Back

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