Understanding Newton's Laws of Motion

Front

What is Newton's First 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 an unbalanced force?

Back

A force that causes a change in the motion of an object, resulting in acceleration.

Front

What is the formula for calculating net force?

Back

Net Force = Sum of all forces acting on an object.

Front

What happens to an object's motion when balanced forces act on it?

Back

The object's motion remains unchanged.

Front

What is the gravitational force?

Back

The force of attraction between two masses, which depends on their masses and the distance between them.

Front

How does mass affect gravitational force?

Back

The greater the mass of an object, the greater the gravitational force it exerts.

Front

What is weight?

Back

Weight is the force of gravity acting on an object, calculated as Weight = mass × acceleration due to gravity.

Front

What is the acceleration due to gravity on Earth?

Back

Approximately 9.81 m/s².

Front

If a box is pushed with 10N to the right and 8N to the left, what is the net force?

Back

2N to the right.

Front

What is the effect of gravity on a feather and an elephant in a vacuum?

Back

Both fall at the same rate, but the elephant has a greater weight.