Understanding Forces and Motion

If these boys are pulling with the same amount of force.  What will happen?

• The boy in blue will win.

• They will not move at all.

• The boy in red will win.

• Both will fall down.

Tags

NGSS.MS-PS2-1

Two teams are pulling on a rope with equal force during a game

of tug-of-war. What will happen to the rope?

• It will stay in the same place.

• It will fly in the air.

• It will move toward Team 1.

• It will move toward Team 2.

Tags

NGSS.MS-PS2-1

In a tug of war game, where one side is winning, the forces are

• Balanced

• Unbalanced

• multiplied

• unfair

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

A student uses a video camera to record another student dropping a marble through water in a graduated cylinder. The student watched the video in slow motion and made the observation shown below. During which part or parts of the marble's fall did the marble experience unbalanced forces?

• part 1 only

• parts 1 and 2 only

• part 3 only

• parts 2 and 3 only

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

If these boys are pulling with the same amount of force.  What will happen?

• The boy in blue will win.

• The boy in red will win.

• Both will fall down.

• They will not move at all.

Tags

NGSS.MS-PS2-1

Why is person B having a hard time moving down the hill?

• Person B has more friction than person A.

• Person B has the same friction as person A.

• Person B is out of shape.

• Person B has less friction has person A.

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

If these boys are pulling with the same amount of force.  What will happen?

• The boy in blue will win.

• They will not move at all.

• The boy in red will win.

• Both will fall down.

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

The diagram below show the forces acting on a soccer ball.

In which of the diagrams will the ball remain motionless?

• W

• X

• Y

• Z

Tags

NGSS.MS-PS2-2

What is a balanced force?

• A force that causes an object to start moving

• A force that does not change the motion of an object

• A force that speeds up an object

• A force that slows down an object

Which of the following is an example of unbalanced forces?

• A book resting on a table

• A car accelerating on a highway

• A picture hanging on a wall

• A ball at rest on the ground

Tags

NGSS.MS-PS2-2