Ch4 Kinematics Review

Which of these is a vector quantity?

• 12:30 PM
• 65 kilometers per hour
• West wind at 30 knots
• 450 mg

Riding an escalator you spot your friend waiting for you. Your frame of reference is...

• accelerated
• fixed
• elevated
• rotational

A train travels at a constant speed of 120 km/h. How far can it travel in 3.0 hours? d = vt

• 360 miles
• 40 km
• 60 km
• 360 km

Analyzing how a speed skater moves

• Kinematics
• Dynamics
• Thermodynamics
• Statics

Rate of displacement in a specific direction

• Speed
• Acceleration
• Motion
• Velocity

Designing a building that will withstand Hurricane force winds

• Dynamics
• Statics
• Hurricanematics
• Kinematics

The Florida Highway Patrol are constantly checking the _______ of cars driving on the interstate.

• instantaneous speed
• average speed
• acceleration
• displacement

The rate of change in velocity over time is known as...

• acceleration

• constant speed

• average speed

• displacement

A car goes from 0.0 to 30 m/s in just 20 seconds. What is the car's rate of acceleration?

• 1.33 m/s²

• 1.5 m/s²

• 20 m/s²

• 0.67 m/s²

The speedometer on your car tells you

• average velocity

• instantaneous acceleration

• average speed

• instantaneous speed