Newton's First law

Front

What is Newton's First Law of Motion?

Back

Newton's First Law of Motion states that an object at rest will remain at rest, and an object in motion will continue moving in a straight line at constant speed unless acted upon by a net external force.

Front

What does it mean for an object to be in a state of constant velocity?

Back

An object in a state of constant velocity is moving at a steady speed in a straight line, meaning there is no net force acting on it.

Front

What is inertia?

Back

Inertia is the tendency of an object to resist changes in its state of motion. It is directly related to the mass of the object.

Front

What happens to an object if the net force acting on it is zero?

Back

If the net force acting on an object is zero, the object will either remain at rest or continue to move at a constant velocity.

Front

What is a balanced force?

Back

Balanced forces are equal in size and opposite in direction, resulting in no change in motion.

Front

What is an unbalanced force?

Back

Unbalanced forces are not equal and opposite, causing a change in the object's motion.

Front

Give an example of an object in motion that is experiencing balanced forces.

Back

A book resting on a table is experiencing balanced forces: the force of gravity pulling it down and the normal force from the table pushing it up.

Front

What is the relationship between mass and inertia?

Back

The greater the mass of an object, the greater its inertia, meaning it will be harder to change its state of motion.

Front

How does wind affect a car moving at a constant velocity?

Back

If a car is moving at a constant velocity, the wind does not change its state of motion unless it creates an unbalanced force.

Front

What is the significance of the phrase 'net force'?

Back

Net force is the total force acting on an object after all the individual forces are combined. It determines the object's acceleration.