Relative Motion Speed Velocity Distance and Displacement

Average speed is found by __________.

• dividing the displacement by the total time spent

• multiplying total distance traveled by the total time

• dividing total distance traveled by the total time

• multiplying the displacement by the total time spent

Which of the following equations is used for calculating speed and velocity?

• v = d/t

• v = t/d

• a = (vf - vI)

• a = (vf - vI/t)

What is the difference between speed and velocity?

• speed requires a specific direction and velocity does not

• velocity requires a specific direction and speed does not

• velocity tells you how far is traveled and speed does not

• speed tells you how far is traveled and speed does not

Choose the 2 measurements that require a specific direction be included.

• displacement

• distance

• speed

• velocity

A caterpillar crawls north 10 m in 2 hours , what was the average velocity?

• 8m/s

• 5 m/s

• 0.2 m/s

• 20 m/h

A frog hops along 50 cm north, sees a fly and turns hopping 60 cm east. What is his total distance hopped? (draw a picture and work it out on scratch paper.)

• 110 cm

• 10 cm

• 300 cm east

• 1.2 cm north

What is the speed of a ball if it takes 40 seconds to travel 800 cm?

• 200 s/cm

• 840 s

• 3200 cm

• 20 cm/s

If it takes 45 s to travel 50 m, what was your average speed over the course of the trip?

• 2,250 m/s

• 0.9 m/s

• 1.1 m/s

• 95 m/s

If you travel 2 km north from your house, and then you travel 5 km south, what is your displacement? (draw a picture and work it out on scratch paper.)

• 7 km south

• 3 km south

• 10 km south

• 2.5 km north

At 8:00 AM you leave home and walk1 km to a friend's house. Later, you return home, then travel by car to the mall, which is 10 km away. What is the total distance traveled?

• 11 km

• 12 km

• 9 km

• 8 km/h