Energy and Newton's First Law of Motion

Front

What is inertia?

Back

Inertia is the tendency of an object to resist a change in its state of motion. Objects at rest stay at rest, and objects in motion stay in motion unless acted upon by a force.

Front

What is Newton's First Law of Motion?

Back

Newton's First Law of Motion states that an object will remain at rest or in uniform motion in a straight line unless acted upon by an external force.

Front

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

Back

When no net force acts on an object, it will maintain its current state of motion, whether at rest or moving at a constant velocity.

Front

What is the relationship between mass and inertia?

Back

The greater the mass of an object, the greater its inertia. This means heavier objects are harder to start or stop moving.

Front

What is the difference between mass and weight?

Back

Mass is the amount of matter in an object and does not change regardless of location. Weight is the force of gravity acting on that mass and can change depending on the gravitational field.

Front

What is an example of inertia in everyday life?

Back

A common example of inertia is when a car suddenly stops, and passengers lurch forward due to their inertia.

Front

What is a force?

Back

A force is a push or pull that can cause an object to accelerate, change direction, or change shape.

Front

What is an unbalanced force?

Back

An unbalanced force occurs when two forces acting on an object are not equal in size and opposite in direction, causing the object to accelerate.

Front

What is a balanced force?

Back

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

Front

How does friction affect motion?

Back

Friction is a force that opposes motion between two surfaces in contact. It can slow down or stop moving objects.