Forces Review

It is defined as forces that are equal in magnitude.

• Unbalanced Forces

• Forces

• Balanced Forces

• Net force

Tags

NGSS.3-PS2-1

Use the picture as reference. If the force of the girl pushing is 20N, and the boy who is also pushing is 15N, what is the net force?

• 5N

• 300N

• 35N

• 1.33N

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

What operation do we use when forces acting on an object have the opposite directions?

• division

• multiplication

• subtraction

• addition

Magnetic Force is an example of ____________ force.

• contact

• non-contact

• balanced

• unbalanced

Tags

NGSS.MS-PS2-5

______________ is a force that always acts in the direction opposite of motion.

• applied

• friction

• gravity

• normal

Applied force is an example of a _________________ force.

• contact

• non-contact

• balanced

• unbalanced

An icy road has less __________ than a dry road.

• friction

• gravity

• magnetism

• water

You push on a tree with 20 N of force. If the tree doesn't move, the tree is pushing back on you with _____of force.

• 20N 
• 40N 
• 10N 
• 0N

Tags

NGSS.MS-PS2-1

What type of fluid friction acts on an object moving through the air?

• Friction 
• Normal Force 
• Gravity 
• Air resistance 

How would the absence of friction affect a marble traveling on a long, straight path?

• The marble’s speed would decrease.
• The marble’s speed would increase.
• The marble would stop immediately. 
• The marble would remain at a constant speed.

Tags

NGSS.MS-PS3-5