Momentum & Impulse

Momentum is measured in

• Newtons

• Joules

• Watts

• kg•m/s

Tags

NGSS.HS-PS2-2

True or False? Momentum is a vector.

• true

• false

Tags

NGSS.HS-PS2-2

A 4 kg ball rolls at 10 m/s. Its momentum is:

• 2.5 kg•m/s

• 4 kg•m/s

• 10 kg•m/s

• 40 kg•m/s

Tags

NGSS.HS-PS2-2

Which has more momentum?

• a 2 kg object moving at 15 m/s

• a 5 kg object moving at 5 m/s

• a 10 kg object moving at 5 m/s

• a 1 kg object moving at 40 m/s

Tags

NGSS.HS-PS2-2

A 4 kg ball experiences a 10 N force acting for 2 sec. The impulse on the ball is

• 5 kg•m/s

• 8 kg•m/s

• 20 kg•m/s

• 40 kg•m/s

Tags

NGSS.HS-PS2-1

A 4 kg ball experiences a 10 N force acting for 2 sec. Its momentum will change by

• 5 kg•m/s

• 8 kg•m/s

• 20 kg•m/s

• 40 kg•m/s

Tags

NGSS.HS-PS2-1

______ forces change momentum

• Nonconservative

• External

• Conservative

• Internal

Tags

NGSS.HS-PS2-2

If only conservative forces act on a system,

• mechanical energy is conserved.

• momentum is conserved.

• mass is conserved.

• charge is conserved.

Tags

NGSS.HS-PS3-1

NGSS.HS-PS3-2

The white pool ball, hits the 8-ball (at rest). If the white ball stops, the 8-ball ends up

• stopped.

• moving slower than the initial speed of the white ball.

• moving just as fast as the initial speed of the white ball.

• moving faster than the initial speed of the white ball.

Tags

NGSS.HS-PS2-2

Momentum conservation of an object is a direct consequence of

• Newton's first law.

• Newton's second law.

• Newton's third law.

• Newton's law of universal gravitation.

Tags

NGSS.HS-PS2-2