Net Force Review

Acceleration is how fast something is going while speed is how fast the speed is changing.

• True

• False

Unbalanced forces cause acceleration, which then changes speed.

• True

• False

Tags

NGSS.MS-PS2-2

What is the net force on the box pictured?

• 11 N to the right

• 25 N to the right

• 1 N to the left

• 0 N no motion

Tags

NGSS.MS-PS2-2

When forces are pushing in the same direction on an object, the smaller force must be subtracted from the larger force to find net force.

• True

• False

Tags

NGSS.MS-PS2-2

The net force on an object cannot be negative.

• True

• False

Tags

NGSS.MS-PS2-2

Why is the boy not moving even though two people are pushing him?

• The net force on the boy is zero.

• The two people are pushing him with equal force in opposite directions.

• The forces on the boy are balanced.

• All of the choices given.

Tags

NGSS.MS-PS2-2

If the girls are pushing the box with 500 N of net force, and they are pushing equally hard, what is the force of each girl?

• 1000 N

• 500 N

• 250 N

• Not enough information.

Tags

NGSS.MS-PS2-1

If the girl on the left suddenly stopped pushing, what would likely happen?

• The boy would move to the left because of balanced forces.

• The girl on the right and the boy would both move to the left because of unbalanced forces.

• There would be no movement because there would be no change in forces.

• The boy and the girl on the right would move to the right because of unbalanced forces.

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

Newton ___.

• is a measure of force

• is represented by the letter N

• is the name of a scientist who studied forces and motion

• All of the choices given.

What is the net force on the rope?

• 525 N left

• 550 N right

• 25 N right

• 25 N left

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2