Forces/Laws/Momentum

You kick a basketball and a tennis ball away from you with an equal amount of force. The tennis ball has less mass and therefore a greater acceleration. Which of Newton's Laws does this demonstrate?

• 1st

• 2nd

• 3rd

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-1

Using the p=mv formula, calculate the MOMENTUM of a 5 kg bird flying south at 20 m/s.

• 100 kg⋅m/s

• 25 kg⋅m/s

• 0.25 kg⋅m/s

• 4 kg⋅m/s

Tags

NGSS.HS-PS2-2

_________ is the tendency of an object to resist a change in motion.

• Inertia

• Force

• Momentum

• Gravity

Tags

NGSS.HS-PS2-1

___________ are two forces acting in opposite directions on an object, and equal in size. Choose the best answer.

• Balanced Forces

• Unbalanced Forces

• Cancelled Forces

• Same Forces

It requires less force to pull a suitcase that is empty than one that is completely full. Which of Newton's Laws does this demonstrate?

• 1st

• 2nd

• 3rd

Tags

NGSS.MS-PS2-2

You push your feet against the pool wall and kick off. The backward push propels you forward through the water. Which of Newton's Laws does this demonstrate?

• 1st

• 2nd

• 3rd

Tags

NGSS.MS-PS2-1

What is the force that opposes the sliding motion of two surfaces that are touching each other?

• Force

• Net Force

• Labor

• Friction

What is the friction like force that opposes the motion of objects that move through air?

• Gravity

• Free Fall

• Air Resistance

• Centripetal Force

If these boys are pulling with the same amount of force.  What will happen?

• The boy in blue will win.
• They will not move at all.
• The boy in red will win.
• Both will fall down.

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-1

Which has more momentum: a car stopped at a red light or a bike moving at 15 mph?

• car
• bike
• they are equal
• cannot determine using the info provided

Tags

NGSS.HS-PS2-2