Physics Assessment

What is speed?

What unit is often used to measure long distances?

• Gram (g)
• Kilometer (km)
• Newton (N)
• Meter per second (m/s)

What type of speed can we tell by looking at a car's speedometer?

• Average Speed
• Instantaneous Speed
• Previous Speed
• Future Speed

True or False: The Law of Conservation of Momentum states that momentum can be transferred but not lost.

• True
• False

The equation for calculating speed is ___________ divided by time.

• Acceleration
• Time
• Distance
• Mass

What is the difference between instantaneous speed and average speed?

Speed that does not change over a certain period of time is called ___________ speed?

• Average
• Instantaneous
• Constant
• Overall

Based on the video above, explain how the Law of Conservation of Momentum is at work here?

Find the momentum of a 25kg mass moving with a velocity of 25 m/s. Momentum= mass x velocity

The equation for calculating momentum is mass x ___________.

• Mass
• Velocity
• Matter
• Force