Review It: Forces

A force is characterized by __________ and _________.

• force and motion
• speed and velocity
• strength and direction
• acceleration and time

A balanced force

• has a net force of 0 N
• has equal and opposite forces acting on an object
• does not cause movement
• All of the above

In a tug of war the left team pulls with a force of 200N. The right team pulls with a force of 150N. What is the net force?

• 350 N to the right
• 50 N to the right
• 50 N to the left
• 0 N

Tags

NGSS.MS-PS2-2

The sum of all forces acting on an object.

• Net force
• Gravity
• Friction
• motion

Tags

NGSS.MS-PS2-2

What happens when two forces act in the same direction?

• They cancel each other out.
• The stronger one prevails.
• Their strengths are added.
• Their sum divided by the two is the total force.

Tags

NGSS.MS-PS2-2

• 0 N
• 150 N
• 50 N
• 200 N

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

What direction is the net force on the car

• Up
• Down
• Right
• Left
• The net force is 0 so there is not direction

Tags

NGSS.MS-PS2-2

• 600 N down
• 600 N up
• 400 N down
• 400 N up

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

What force is pulling the skydiver toward the ground?

• Friction
• Gravity
• Air Resistance

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-4

• Balanced
• Unbalanced

Tags

NGSS.3-PS2-1