# Motion Chapter 1 Test Review Question Preview (ID: 7187)

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6th Grade Motion Chapter 1 Test Review Quiz.

**Speed measurements are given in units of**

a) distance/time

b) time/distance

c) time2/distance

d) distance/time2

**Measurements of acceleration are given in units of**

a) distance/time

b) time/distance

c) time2/distance

d) distance/time2

**An airplane that moves 50 meters in one second has a speed of**

a) 500 cm/s

b) 5,000 cm/sec

c) 180,000 m/h

d) 1800 km/h

**How many centimeters are in a kilometer?**

a) 100

b) 1,000,000

c) 1,000

d) 100,000

**A car traveling at 25 m/s speeds up to 40 m/s over a period of 15 seconds. The average acceleration of the car is**

a) 1 m/s2

b) impossible

c) 15 m/s2

d) 15 km/s2

**A rider finishes a 120-km bicycle trip in 3 hours. The average speed of the rider is**

a) 360 km/hr

b) 4 m/s2

c) 40 km/hr

d) 3.6 m/s

**The trunk of a certain tree is 50 cm thick. Each year it gets thicker by 1 cm. How thick will the tree trunk be in 50 years?**

a) 50 cm

b) 100 cm

c) 5,000 cm

d) 2,500 cm

**It can be important to know the velocity of an object, not just its speed, because**

a) velocity also tells acceleration

b) speed is only useful for fast-moving objects

c) velocity also tells direction

d) speed is always an average

**A runner starts a 5-km race at 10:15 a.m. and finishes at 10:35 a.m. Given this information, you can calculate the runnerâ€™s**

a) velocity

b) reference point

c) acceleration

d) average speed

**An airplane flies 80 km in 10 minutes and then flies 100 km in 20 minutes. The average speed of the airplane is**

a) 60 km/h

b) none of the above

c) 8 km/h

d) 360 km/h

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