P11 Kinematics (2) Distance and displacement

What is a common reference frame used in physics?

• The earth

• Nearby moving objects

• The sun

• Our object of interest

Galileo described reference frames using

• The earth

• A windowless ship

• A passenger in a plane

• Nearby stationary objects in a ship

Which of the following is not a scalar?

• Volume

• Time

• Speed

• Displacement

In our physics class, what variable will we will denote the position of an object with?

• d

• x

• s

• p

The initial value of something has a subscript, what is the subscript for our physics class?

• i

• 0

• f

• s

What symbol means "change in" something?

• delta (∆)

• delta (δ)

• gamma (γ)

• naught (0)

The change in the value of something is calculated as

• final - initial

• initial - final

• initial multiplied by final

• final + initial

How could you measure a time interval longer than 2 seconds?

• Ticker tape

• Stopwatch

• Strobe light camera

• More than one answer is correct

Speed is calculated as

• distance/time

• time/distance

• displacement/time

• time/displacement

Velocity is calculated as

• distance/time

• time/distance

• displacement/time

• time/displacement