Physics Unit 2 Day 1

​Learning Intentions

1. ​Distance v Displacement - Scalar v Vector

2. Speed v Velocity

3. Constant Speed Equation and Problems

4. Avg Speed Equation and Problems

​Path of the coin

​We can choose a reference point.

​

1D - choose 0

2D - choose origin​

​

​Right - Pos

Left - Neg

Up - Pos

Down - Neg​

Multiple Choice

Vector quantities need both a magnitude and a _____.

• distance
• displacement
• direction
• velocity

Multiple Choice

Displacement is a scalar quantity

• True

• False

Multiple Choice

Distance is a Scalar Quantity

• True

• False

Multiple Choice

A man walks 5 miles forwards, 6 miles backwards and then 2 miles forwards. What distance did the man travel?

• - 13 miles

• 13 miles

• +1 mile

• -1 mile

Multiple Choice

A man walks 5 miles forwards, 6 miles backwards and then 2 miles forwards. What is his displacement?

• 1 mile forward

• 13 miles

• 3 miles forward

• 1 mile

Multiple Choice

You walk 10 meters to math class in 20 seconds. Your average speed is

• 2 m/s
• 0.5 m/s
• 200 m/s
• 5 m/s

Multiple Choice

An old lady flew down the highway 600 miles Southward in a side car. The journey in the side car took 10 hours. What was the Avg. velocity of the old woman in the side car?

• 6000 miles/hour Southwards

• 610 miles per hour

• 60 miles/hour Southwards

• 10 miles/hour Southwards

​Constant Speed - v = ΔX / ΔT

​Avg Velocity Rule

​

Avg Velocity when velocity is changing at a steady rate​

Multiple Choice

A bicyclist starts from rest and speeds up steadily to 20 m/s. What was his avg velocity?

• 20 m/s

• 10 m/s

• -20 m/s

Multiple Choice

A car traveling at 20 m/s steadily gained speed until its velocity was to 44 m/s. What was the cars average velocity during this period?

• 25 m/s

• 12 m/s

• 32 m/s

​Assignment

​Positive Physics - Unit 1

​

Constant Velocity Problems

Avg Velocity Rule Problems​