Linear Momentum Quiz(izz) from OpenStax

What is impulse?

• A. Change in velocity
• B. Change in momentum
• C. Rate of change of velocity
• D. Rate of change of momentum

In which equation of Newton’s second law is mass assumed to be constant?

• A. F=ma
• B. F= Δp / Δt
• C. F=ΔpΔt
• D. F= Δm / Δa

What is the SI unit of momentum?

• A. N
• B. kg ⋅ m
• C. kg ⋅ m/s
• D. kg ⋅ m/s^2

What is the equation for linear momentum?

• A. p=mv
• B. p=m/v
• C. p=mv^2
• D. p=1/2mv^2

Tags

NGSS.HS-PS2-2

What kind of quantity is momentum?

• A. Scalar
• B. Vector

What is an isolated system?

• A. A system in which the net internal force is zero
• B. A system in which the net external force is zero
• C. A system in which the net internal force is a nonzero constant
• D. A system in which the net external force is a nonzero constant

Give an example of an isolated system.

• A. A cyclist moving along a rough road
• B. A figure skater gliding in a straight line on an ice rink
• C. A baseball player hitting a home run
• D. A man drawing water from a well

What is an inelastic collision?

• A. when objects stick together after impact, and their internal energy is not conserved
• B. when objects stick together after impact, and their internal energy is conserved
• C. when objects stick together after impact, and always come to rest instantaneously after collision
• D. when objects stick together after impact, and their internal energy increases

In which type of collision is kinetic energy conserved?

• A. Elastic
• B. Inelastic

Two objects having equal masses and velocities collide with each other and come to a rest. Is momentum conserved in this case?

• A. Yes
• B. No