Force, Speed, and Acceleration

What force does the ground produce that makes it difficult to push things on the ground?

• Friction

• Gravity

• Density

Tags

NGSS.3-PS2-1

What direction is the present going?

• right

• left

The present moves to the right because

• The applied force is bigger than the friction force

• The friction force is greater than the applied force

• The applied force and the friction force are the same

Tags

NGSS.MS-PS2-2

Balanced forces show

• an object moving

• an object not moving

Unbalanced forces show

• an object moving

• an object not moving

Tags

NGSS.MS-PS2-2

These forces are in opposite directions. How do you find the net force?

• Add

• Subtract

• Multiply

• Divide

Tags

NGSS.HS-PS2-1

What is the net force and direction of the movement?

• 125 N to the left

• 125 N to the right

• 100 N to the left

• 100 N to the right

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

If the forces are acting in the SAME DIRECTION, how do you find the net force

• add

• subtract

• divide

• multiply

Tags

NGSS.3-PS2-1

Lizzie is pushing Alex on a scooter. Lizzie is pushing with a 75 Newton force to the left, and Alex is helping with a 20 Newton force to the left. What is the NET FORCE on the scooter?

• 95 N to the right

• 95 N to the left

• 55 N to the right

• 55 N to the left

Tags

NGSS.MS-PS2-2

Solve for NET FORCE.

140 N right, 20 N left

• 160 N to the right

• 160 N to the left

• 120 N to the left

• 120 N to the right

Tags

NGSS.MS-PS2-2