Physics Pre Quiz

What is the formula for momentum (p)?

• p = mv

• p = FΔt

• p = m/a

• p = v/m

Tags

NGSS.HS-PS2-2

What are the units of momentum?

• N·s

• kg·m/s

• m/s²

• kg·m²/s²

Tags

NGSS.HS-PS2-2

Impulse (J) is defined as the change in momentum. What is the formula for impulse?

• J = FΔt = Δp

• J = mv

• J = m/a

• J = v/m

Tags

NGSS.HS-PS2-2

What are the units of impulse?

• kg·m/s

• N·s

• m/s²

• kg·m²/s²

A 1,200 kg car travels at 20 m/s. What is its momentum?

• 24,000 kg·m/s

• 1,200 kg·m/s

• 20 kg·m/s

• 6,000 kg·m/s

Tags

NGSS.HS-PS2-2

If a car slows to a stop, what is its final momentum?

• 0 kg·m/s

• 1,200 kg·m/s

• 20 kg·m/s

• 24,000 kg·m/s

Tags

NGSS.HS-PS2-2

What must be applied over time to change an object's momentum?

• Mass

• Force

• Velocity

• Acceleration

Tags

NGSS.HS-PS2-2

What happens to the force required if the stopping time is longer for the same change in momentum?

• The force required is less

• The force required is more

• The force required remains the same

• The force required doubles

Tags

NGSS.HS-PS2-1

What does the Law of Conservation of Momentum state?

• In a closed and isolated system, the total momentum before any interaction is equal to the total momentum after the interaction.

• In an open system, the total momentum before any interaction is equal to the total momentum after the interaction.

• In a closed system, the total momentum before any interaction is greater than the total momentum after the interaction.

• In an isolated system, the total momentum before any interaction is less than the total momentum after the interaction.

Tags

NGSS.HS-PS2-2

What is the formula for the Law of Conservation of Momentum?

Tags

NGSS.HS-PS2-2