Unit 3 Test Review- Force and Motion

Front

What happens to an object when the forces acting on it are balanced?

Back

It remains at rest or moves at a constant speed.

Tags

NGSS.HS-PS2-1

Front

What is the net force acting on an object when two forces are applied in opposite directions?

Back

The net force is the difference between the two forces.

Tags

NGSS.HS-PS2-1

Front

If a car is moving to the right with a force of 35 newtons and the wind is blowing to the left with a force of 15 newtons, what is the net force?

Back

20 N to the right.

Tags

NGSS.MS-PS2-2

Front

What is the definition of net force?

Back

The overall force acting on an object when all the individual forces are combined.

Tags

NGSS.MS-PS2-2

Front

What is the result of unbalanced forces acting on an object?

Back

Change in motion.

Tags

NGSS.MS-PS2-2

Front

What does it mean for an object to accelerate?

Back

It means the object is changing its velocity, which can be a change in speed or direction.

Front

What is the relationship between net force and acceleration?

Back

Net force is directly proportional to acceleration; if net force increases, acceleration increases.

Tags

NGSS.MS-PS2-2

Front

What is the formula for calculating net force?

Back

Net force = mass × acceleration (F = ma).

Tags

NGSS.MS-PS2-2

Front

What is the significance of a net force greater than zero?

Back

It indicates that the object is accelerating.

Tags

NGSS.MS-PS2-2

Front

What is inertia?

Back

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