Newton's Laws and 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 at a constant velocity unless acted upon by a net external 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

Define 'inertia'.

Back

The tendency of an object to resist changes in its state of motion.

Front

What is average speed?

Back

Average speed is the total distance traveled divided by the total time taken.

Front

How do you calculate average speed?

Back

Average Speed = Total Distance / Total Time.

Front

What does a constant speed graph look like?

Back

A straight line with a positive slope on a distance-time graph.

Front

What happens to an object in motion when no net force acts on it?

Back

It continues to move at a constant velocity.

Front

What is the relationship between force, mass, and acceleration?

Back

Force equals mass times acceleration (F=ma).

Front

What is the significance of the slope in a distance-time graph?

Back

The slope represents the speed of the object.