Inertia: Newtons first Law

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What is inertia?

Back

Inertia is the tendency of an object to resist changes in its state of motion. An object at rest stays at rest, and an object in motion continues in motion at a constant velocity unless acted upon by an unbalanced force.

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What is Newton's First Law of Motion?

Back

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

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What is a force?

Back

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

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What is friction?

Back

Friction is a force that opposes the motion of two surfaces that are in contact with each other.

Front

What happens to an object in motion if no forces act on it?

Back

If no forces act on an object in motion, it will continue to move in a straight line at a constant speed.

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What is an unbalanced force?

Back

An unbalanced force is a force that causes an object to accelerate, resulting in a change in its motion.

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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.

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What is an example of inertia in everyday life?

Back

When a car suddenly stops, passengers lurch forward due to inertia, as their bodies want to continue moving in the same direction.

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How does friction affect motion?

Back

Friction opposes motion, which can slow down or stop moving objects.

Front

What does it mean for forces to be balanced?

Back

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