Newton's 1st Law

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 unless acted upon by a net external force.

Front

Define net force.

Back

Net force is the vector sum of all the forces acting on an object.

Tags

NGSS.MS-PS2-2

Front

If two forces of 15 N are acting in the same direction, what is the net force?

Back

30 N in the same direction.

Tags

NGSS.MS-PS2-2

Front

What does it mean for forces to be balanced?

Back

Balanced forces mean that the net force acting on an object is zero, resulting in no change in motion.

Front

If an object has a net force of 4 N to the left, what can we say about the forces acting on it?

Back

The forces acting on it are unbalanced, with a greater force acting to the left than to the right.

Tags

NGSS.MS-PS2-2

Front

Give an example of Newton's First Law in everyday life.

Back

When a car suddenly stops, passengers lurch forward due to inertia.

Front

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

Back

It remains at rest.

Front

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

Back

It continues to move at a constant velocity.

Front

How do you calculate net force when forces are acting in opposite directions?

Back

Subtract the smaller force from the larger force and indicate the direction of the larger force.

Front

What is inertia?

Back

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

Tags

NGSS.MS-PS2-2