Motion

During which interval is the object not moving?

• B to C
• C to D
• D to E
• only at point A

Acceleration occurs when an object changes its speed or ______.

• direction
• force
• inertia
• mass

Which runner stopped for a rest?

• Albert
• Bob
• Charlie

Which runner won the race?

• Albert
• Bob
• Charlie

This is a velocity-time graph.  What is the object doing in segment A?

• Positive acceleration
• Negative acceleration
• Constant Velocity
• Not moving

This is a velocity-time graph.  What is the object doing in segment C?

• Positive acceleration
• Negative acceleration
• Constant Velocity
• Not moving

Calculate the acceleration for segment A.

• 2 m/s²
• 20 m/s²
• -2 m/s²
• 0 m/s²

A car driving at 50 miles per hour drives for 2 hours. What distance did it cover?

• 50 miles
• 25 miles
• 100 miles
• 75 miles

A truck driving at 60 miles per hour travels 120 miles. How long is it driving for?

• 9000 hours

• 0.4 hours

• 210 hours

• 2 hours

Acceleration of an object happens when things ________

• slow down
• go faster
• change direction (turn)
• All of the above