Momentum UT

According to Newton's First Law, objects remain in motion with a constant velocity unless what occurs?

• They collide with another object

• They are acted upon by a force

• Their mass increases

• Their speed reaches a certain limit

When two objects of different masses travel with the same speed, which one is harder to stop?

• The one with less mass

• The one with more mass

• Both are equally hard to stop

• It is impossible to stop either

When objects of equal masses travel with different speeds, which one is harder to stop?

• The slower one

• The faster one

• Both are equally easy to stop

• It depends on the direction of travel

How is momentum (p) defined in physics?

• p = mass / velocity

• p = mass + velocity

• p = mass x velocity

• p = mass - velocity

What is momentum a product of?

• Mass and acceleration

• Mass and velocity

• Force and velocity

• Energy and time

Which of the following is a vector quantity?

• Temperature

• Mass

• Momentum

• Energy

What is the unit for momentum?

• kg/s

• m/s

• kg·m/s

• N·s (Newton-second)

What is the momentum of a 3000 kg truck traveling at 25 m/s?

• 75,000 kg·m/s

• 7,500 kg·m/s

• 750 kg·m/s

• 75 kg·m/s

Which of the following options correctly defines the unit of momentum?

• Kilogram meters per second (kg m/s)

• Meters per second squared (m/s²)

• Newtons (N)

• Joules (J)

What is the momentum of a 3000 kg truck traveling at 15 m/s?

• 45,000 kg·m/s

• 45 kg·m/s

• 4,500 kg·m/s

• 450,000 kg·m/s