Force & Motion 1

Ball C is rolling across the surface, but it eventually comes to a stop.  What force is most likely responsible for this?

• friction
• magnetism
• gravity
• air resistance

Tags

NGSS.MS-PS2-2

A horse can run up to 55 m/hr.  This describes the horse's _____.

• position
• direction
• speed
• acceleration

Ja'Maiyah and Skyla are each pushing on a shopping cart.  If the cart is not moving, what do you know about the forces they are using?

• The forces are balanced.
• They forces are unbalanced.
• Skyla is pushing with more force than Ja'Maiyah.
• Ja'Maiyah is pushing with more force than Skyla.

Tags

NGSS.MS-PS2-2

If Ja'Maiyah pushes the cart with a greater force than Skyla, what will happen to the cart?

• The cart will not move.
• The cart will move towards Ja'Maiyah.
• The cart will move towards Skyla.
• The cart will spin out of control.

Tags

NGSS.MS-PS2-2

All of the blocks above have the same mass.  Each block has 2 forces acting on it (a large force and a small force).  Which of the blocks would move the fastest across the floor?

• A
• B
• C
• D

What is the net force on the block? (click on the words to view the picture)

• 5 Newtons up
• 5 Newtons down
• 15 Newtons up
• 15 Newtons down

Tags

CCSS.7.EE.B.3

A student walking quickly while carrying an orange on his lunch tray stops suddenly. The orange will most likely roll off the tray due to

• inertia of the orange. 
• centripetal force of the orange
• the friction acting on the orange.
• the balanced forces acting on the orange.

Tags

NGSS.MS-PS2-2

When a bird flies, its wings push air downward. As a result the air pushes back upward on the bird. Which law of motion most applies to the way the wings of a bird beat? 

• Every action has an equal and opposite reaction
• The rate of acceleration of an object depends on the amount of force applied.
• Objects in motion tend to remain in motion until acted upon by an another force. 
• Force is defined by mass times acceleration

Angela blows air into a balloon and holds the end of it closed with her fingers. When she lets go of the end of the balloon, Angela observes that the release of the air propels the balloon.  The propelling of the balloon from the release of the air is an example of which of Newton’s laws? 

• The force of an object is the product of its mass multiplied by its acceleration. 
•  A force of attraction exists between any two objects with mass. 
•  For every action, there is an equal and opposite reaction.
• An object in motion tends to stay in motion unless an unbalanced force acts upon it. 

Tags

NGSS.MS-PS2-1

When you kick a football, you are applying ________ to the ball.

• mass
• gravity
• unbalanced force
• balanced force

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-1