Balance and Unbalance Force

A girl is pushing a cart by herself with a force of 7 N. What will happen if a boy begins to help her and their combined force is 17 N?

• The cart will speed up.

• The cart will slow down.

• The cart will move at a constant speed in a straight line.

• The cart will fly to never never land!

Tags

NGSS.MS-PS2-2

A _____ is a pull or a push.

• force

• friction

• gravity

• speed

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

Balanced forces can cause

• an object to speed up or slow down

• an object to stay still or move at a constant speed and direction

Tags

NGSS.MS-PS2-2

An unbalanced force can make all of these things happen except...

• a moving object changes direction

• an object just sits there

• a moving object speeds up

• a moving object stops

Tags

NGSS.MS-PS2-2

this force is ___________ and there will be 

• unbalanced, no movement

• balanced, movement to the left

• balanced, no movement

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

The boat moves to the left at a speed of 4 m/s. The current moves to the right at 2 m/s. What will happen if the current increases to 3 m/s?

• The boat will speed up.

• The boat will slow down. 

• The boat will move backwards.

• The boat will continue sailing to the left at a constant speed of 4 m/s.

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

You and your dad are moving the couch from one side to another. Your dad pushes with a force of 35 N to the right and you push with a force of 25 N right. What is the net force on the couch?

• 60 N right

• 10 N left

• 60 n right

• 50 N left

Tags

NGSS.MS-PS2-2

A wheeled cart is moving to the right at a constant speed.  Two forces of equal magnitude are acting upon the cart. Which of the following best describes the forces and motion of the cart?

• Balanced Forces, Constant Speed

• Balanced Forces, Acceleration

• Unbalanced Forces, Constant Speed

• Unbalanced Forces, Acceleration

Tags

NGSS.MS-PS2-2

How will this object move? 

• It won't move. 

• It will move to the right. 

• It will move to the left. 

• It will move up. 

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

In a tug of war the left team pulls with a force of 200N. The right team pulls with a force of 150N. What is the resultant force?

• 50N to the left.

• 350N to the left.

• 350N to the right.

• 50N to the right.

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2