Intro to Forces - practice quiz

A force is...

• an "invisible mechanism."

• measured in Newtons.

• any push or pull on an object.

• all of the above.

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

Which of the following are forces?

• Magnetism

• Friction

• Gravity

• Air resistance

• All of the above

Tags

NGSS.MS-PS2-4

Why does a leaf take longer to hit the grass than an acorn?

• An acorn has a more gravity.

• An acorn experiences more air resistance.

• A leaf experiences more air resistance.

• A leaf has more gravity.

When forces are _________ the object DOES NOT move.

• unbalanced

• balanced

• heavy

• light

Tags

NGSS.MS-PS2-2

The sum of all the forces acting on an object is a(n)

• net force.

• balanced force.

• unbalanced force.

• exerted force.

Tags

NGSS.MS-PS2-2

What is the net force of an object that is not moving?

• 100 N

• 10 N

• 0 N

• -10 N

Tags

NGSS.HS-PS2-1

Which example would be a balanced force?

• Two students pushing on a desk with the same amount of force in opposite directions.

• Two students pushing on a desk with the same amount of force in the same direction.

• Two students pulling on a desk with the same amount of force in the same direction.

• Two students flipping the desk over with the same amount of force.

Tags

NGSS.3-PS2-1

What is the net force?

• 20 N

• 0 N

• 400 N

• 40 N

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

What is the net force?

• 10 N

• 0 N

• 25 N

• 1 N

Tags

NGSS.MS-PS2-2

Who wins the tug of war with what net force?

• The team on the left with 20 N

• The team on the left with 80 N

• The team on the right with 60 N

• The team on the right with 20 N

Tags

NGSS.MS-PS2-2