Speed, Velocity and Acceleration Calcs

Speed equals distance divided by...

• time

• velocity

• size

• motion

When you know both the speed and direction of an object's motion, you know the...

• average speed of the object

• acceleration of the object

• distance the object has traveled

• velocity of the object

A train that travels 100 kilometers in 4 hours is traveling at what average speed?

• 50 km/hr

• 100 km/hr

• 2 km/hr

• 25 km/hr

If a bicyclist travels 30 km in 2 hours, her average speed is...

• 30 km/hr

• 60 km/hr

• 15 km/hr

• 2 km/hr

A car accelerates from a standstill to 70 m/s in 10 seconds. What is the acceleration?

• 0.7m/s²

• 7m/s²

• 14m/s²

A drag racer accelerated from rest ( 0 m/s ) to 195 m/s in 6.5 s.  What was the acceleration?

• 10 m/s
• 30 m/s²
• -3 m/s²
• 26 m/s

Tags

NGSS.MS-PS2-2

If you slow down on your bicycle, you accelerate.

• TRUE
• FALSE

Tags

NGSS.HS-PS2-1

Which of the following is a measurement of velocity?

• 16 m east

• 25 m/s²

• 55 m/s south

• 60 km/hr

Scott travels north 5 miles and then goes west 3 miles before coming straight back south 2 miles. What is his distance traveled?

• 10 mi

• 7 mi

• 8 mi

• 6 mi

Jermaine runs exactly 2 laps around a 400 meter track. What is the displacement?

• 800 m

• 400 m

• 0 m

• 200 m