Physics Middle School

Students are playing tug-of-war. If group B pulls the rope to the right with a force of 400 N and group A pulls the rope to the left with a force of 250 N, what will happen to the ribbon in the middle of the rope?

• The ribbon will move to the left and group A will win the tug-of-war.

• The ribbon will move to the left and group B will win the tug-of-war.

• The ribbon will move to the right and group B will win the tug-of-war.

• The ribbon will move to the right and group A will win the tug-of-war.

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

The forces represented by the arrows in the diagrams are applied to the four objects that are at rest on a table. Which object is most likely to remain in place?

• Object W

• Object X

• Object Y

• Object Z

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

Describe the speed of the rocket in the speed vs. time graph.

• Constant speed

• Decreasing speed

• Increasing speed

• Not moving

Tags

NGSS.MS-PS3-1

The picture of the position vs. time graph shows an object that is...

• accelerating/speeding up

• moving at a constant speed 

• not moving 

• accelerating/slowing down. 

Tags

NGSS.MS-PS3-1

Why does an 18-wheeler have more inertia than a bicycle?

• it has more mass

• it has more volume

• it is not as aerodynamic

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

An object's velocity can be changed by changing its speed, its direction, or both.

• True

• False

Tags

NGSS.MS-PS3-1

A magician pulls a tablecloth out from under dishes and glasses on a table without disturbing them.

• Newton's 1st Law

• Newton's 2nd Law

• Newton's 3rd Law

• None of them

A person’s body is thrown outward as a car rounds a curve on a highway.

• Newton's 1st Law

• Newton's 2nd Law

• Newton's 3rd Law

• None of them

Pushing a child on a swing is easier than pushing an adult on the same swing, because the adult has more inertia.

• Newton's 1st Law

• Newton's 2nd Law

• Newton's 3rd Law

• None of them

Tags

NGSS.MS-PS2-2

Which of the following would have the greatest gravitational attraction between the two masses

• Picture A

• Picture B

• Picture C

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4