Forces and Interaction

2. A combination of all the forces acting on an object is called___________________.

• unbalanced force

• balanced force

• net force

• gross force

Tags

NGSS.MS-PS2-2

When the net force on an object is zero, we say that the two forces are:

• Cancelled out

• Gross

• Balanced

• Unbalanced

If you are pushing a box toward your friend with a force of 20 N, and your friend is pushing the box toward you with a force of 30 N, what will happen to the box?

• The box will move toward your friend with a force of 50 N.

• The box will move toward you with a force of 10 N.

• The box will move toward your friend with a force of 10 N.

• The box will move toward you with a force of 50 N.

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

Which of the following statements describes unbalanced forces?

• Unbalanced forces can cause a still object to move, a moving object to speed up or slow down, a moving object to stop, or a moving object to change direction.

• Unbalanced forces can only change the direction an object is moving.

• Unbalanced forces can only change the speed an object is moving.

• Unbalanced forces cannot change the motion of an object.

Tags

NGSS.MS-PS2-2

What units are used to measure force?

• Kilogram

• Meter

• Pascal

• Newton

___________ is the amount of matter in an object.

• mass
• weight
• volume
• force

What is the net force?

• 30 N left
• 25 N right
• 5 N left
• 55 N right

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

During which interval is the object not moving?

• B to C
• C to D
• D to E
• only at point A

At hour one, the average speed of the bicyclists was approximately -

• 1 mph

• 2 mph

• 5 mph

• 10 mph

Tags

NGSS.MS-PS3-1

Which letter represents the object at rest?

• A

• B

• C

• D

Tags

NGSS.MS-PS3-1