Force and Motion Optional Practice for Tuesday's assessment

Examine the picture in which a girl is trying to pull a dog on a leash, but the dog and the girl are moving in the same direction. Which of the following best describes the forces in this situation?

• The forces are balanced and the net force is zero

• The forces are unbalanced, and the girl’s force is greater

• The forces are unbalanced, and the dog’s force is greater

• The forces are balanced, and the dog is stronger than the girl

Tags

NGSS.MS-PS2-2

A moving company is trying to move a refrigerator into a new home. The following forces are shown below. Which of the following set of arrows would result in a net force of 200 with movement to the left?

• 
• 
• 
• 

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-1

Which of the following would result in a net force of 0N?

• 
• 
• 
• 

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-1

Which of Newton's Laws best explains why you continue to move forward in your seat when a car comes to a stop?

• Law of Inertia

• Law of Force & Acceleration

• Law of Action-Reaction

What is the tendency to resist a change in motion?

• Inertia

• Force

• Acceleration

• Reaction

Acceleration is - (select more than one)

• distance traveled in a given amount of time

• speed with direction

• a change in speed

• a change in direction

What is required to change the velocity of an object?

• Force

• Mass

• Acceleration

• Friction

Tags

NGSS.MS-PS2-2

What will happen if the same strength force is exerted on two objects but the objects have different masses?

• The object with LESS mass will have a greater change in velocity.

• The object with MORE mass will have a greater change in velocity.

• BOTH objects will have the same change in velocity.

• NEITHER object will have a change in velocity.

Tags

NGSS.MS-PS2-2

When two objects collide, what force is exerted on the objects?

• A STRONGER force is exerted on the object with LESS mass.

• A WEAKER force is exerted on the object with MORE mass.

• An EQUAL force is exerted on BOTH objects.

• A force is exerted on NEITHER objects.

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-1

Which of Newton's laws is illustrated when a magician pulls a tablecloth out from under the dishes without disturbing them?

• first
• second
• third 
• fourth

Tags

NGSS.MS-PS2-1