Forces and Momentum

The force of gravity acting on an object is the object's ______.

• mass
• matter
• weight 
• friction 

Tags

NGSS.MS-PS2-4

What is the net force?

• 5.5 N left
• 5.5 N right
• 2.5 N left
• 2.5 N right

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

If there are two forces going in the same direction how would you find the net force?

• Subtract
• Add
• Neither
• Multiply

Tags

NGSS.MS-PS2-2

Using the gravity of earth at 9.81 m/s² , how much does a person with a mass of 35 kg weigh in Newton's?

• 0.28 N

• 343 N

• 3.57 N

• 212 N

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-4

If a 56 kg person on an unknown planet weighs 450 N , what must be the gravity on this planet?

• 8.04 kg⋅m/s

• 8.04 m/s^2

• 25,200 m/s^2

• 25,200 kg⋅m/s

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

A 20 kg bike accelerates at 10 m/s². what was the force?

• 25 Newtons

• 20 Newtons

• 200 Newtons

• 10 Newtons

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

Which of the following is the formula for momentum?

• p = mv

• M = mv

• F = ma

• g = mc²

Tags

NGSS.HS-PS2-2

Which of the following is the unit for momentum?

• kg·m/s

• kg·m

• kg·m/s²

• Momentum has no unit.

Tags

NGSS.HS-PS2-2

Calculate the momentum of a 55-kg running back moving forward at 10 m/s.

• 550 kg·m/s

• -550 kg·m/s

• 5.5 kg·m/s

• -5.5 kg·m/s

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

With what velocity must a 0.48-kg softball be moving to equal the momentum of a 0.29-kg baseball moving at 23 m/s?

• 13.9 m/s

• 10.8 m/s

• 16.7 m/s

• 12.0 m/s

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2