Contact Forces Review

A swimmer pushes back on the water and moves forward. This is an example of:

• Newton's 1st Law

• Newton's 2nd Law

• Newton's 3rd Law

Tags

NGSS.MS-PS2-1

For every action...

• There is an opposite reaction

• There is a change in direction

• There is acceleration

• There is a Boogie Monster

Tags

NGSS.MS-PS2-1

What would cause the golf ball to stop rolling on the green?

• Gravity

• Vector

• Mass

• Friction

Tags

NGSS.MS-PS2-2

What is the net force?  

• 0 N

• 10 N

• 25 N

• 5 N

Tags

8-PS2-2

Are the forces acting on the rope balanced or unbalanced?

• Balanced

• Unbalanced

Tags

8-PS2-2

A wheeled cart is moving to the right at a constant speed.  Two forces of equal magnitude are acting upon the cart. Which of the following best describes the forces and motion of the cart?

• Balanced Forces, Constant Speed

• Balanced Forces, Acceleration

• Unbalanced Forces, Constant Speed

• Unbalanced Forces, Acceleration

Tags

8-PS2-2

How will this object move? 

• It won't move. 

• It will move to the right. 

• It will move to the left. 

• It will move up. 

Tags

8-PS2-2

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 resultant force?

• 50N to the left.

• 350N to the left.

• 350N to the right.

• 50N to the right.

Tags

8-PS2-2

Which of the blocks above has balanced forces acting on it?

• A

• B

• C

• D

Tags

8-PS2-2

What is the net force and the direction of movement?  

• 13 N Toward Y

• 13 N Toward Z

• 7 N Toward Y

• 7 N Toward Z

Tags

8-PS2-2