Forces Test

A rolling ball will slow down until it finally stops. What force slows down and stops the ball?

• gravity

• solar power

• friction

• speed

Tags

NGSS.MS-PS2-2

An Orange falls off a tree and lands on the ground. What force caused the orange to fall?

• friction

• heat

• gravity

• wind

Tags

NGSS.3-PS2-1

NGSS.5-PS2-1

A 10 kg, 15 kg, and 20 kg rock are rolling down a hill. Which rock will require the most force to stop?

• 10 kg rock

• 15 kg rock

• 20 kg rock

• All 3 rocks will require the same force

Tags

NGSS.MS-PS2-2

The students in Mrs. Hoffman’s class played tug-of-war. The girls pulled in one direction with a force of

150 N. The boys pulled in the opposite direction with a force of 100 N. Who won the game and why did they win?

• The boys won because they applied a stronger force to the

  rope

• The boys and the girls tied because they applied equal

  forces to the rope

• The girls won because they applied a stronger force to the

  rope

• Too much force was applied, the rope broke

Tags

NGSS.MS-PS2-2

What is the name of the unit to measure force?

• Neutrons

• Newtons

• Neptune

• Kilograms

Forces allow objects to start moving and to stop moving

• TRUE

• FALSE

If you were to push against a solid statue with 30 N of force, with how much force will the statue push back with?

• 300 N

• 60 N

• 15 N

• 30 N

Which of the following statements about UNBALANCED FORCES is INCORRECT?

• Unbalanced forces always cause a change in motion

• Unbalanced forces are not equal

• Unbalanced forces are equal

• Unbalanced forces are not opposite

Oil and grease are lubricants that reduce friction between moving parts by making the surfaces smoother.

• TRUE

• FALSE

What is the net force and the direction of movement?

• 50 Newtons, Left
• 50 Newtons, Right
• 500 Newtons, RIght
• 450 Newtons, LEft

Tags

NGSS.MS-PS2-2