10-23 Newtons First Law of Motion Checkup

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 at a constant speed and in a straight line unless acted upon by a net external force.

Front

What is inertia?

Back

Inertia is the tendency of an object to resist changes in its state of motion.

Front

How does speed affect an object's motion?

Back

Speed determines how fast an object moves; changes in speed can alter the object's motion.

Front

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

Back

It will maintain its current state of motion, whether at rest or moving at a constant speed.

Front

What is a balanced force?

Back

Balanced forces are equal in size and opposite in direction, resulting in a net force of zero.

Front

What is an unbalanced force?

Back

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

Front

What is the relationship between force and motion?

Back

A force applied to an object can change its speed or direction of motion.

Front

What is the effect of gravity on motion?

Back

Gravity pulls objects toward the Earth, affecting their motion and speed.

Front

How does friction affect motion?

Back

Friction opposes motion, slowing down or stopping moving objects.

Front

What is the significance of a net force of zero?

Back

A net force of zero means that the object will not accelerate; it will either remain at rest or continue moving at a constant speed.