Free Printable 8.IIIB. STUDY GUIDE SCIENCE

Worksheets

8.IIIB. STUDY GUIDE SCIENCE

Total questions: 28

Worksheet time: 30mins

Name

Class

Date

Speed -

A measure that gives rate of change and position

A measure that dissolves to one unit

A measure of distance an object travels per unit of time.

A measure of distance an object travels per unit of measurement.

Distance formula

S X T

T X S

T/D

D/T

Time formula

T= D/S

T= S X T

T = D/ T

T= T/ T

The overall speed at which an object moves

Average speed

Speed

Balanced

Unbalanced

Constant speed -

is the rate of change of position in which the same distance is traveled each second.

Measurement of time and distance

The rate that measures distance and time

The rate that measures acceleration.

What is the speed of a bus that travels 250 km in 2 hours?

Formula ?

Answer ?

S= D/T

125km/hr

S= T/D

521km/meters

S=D/T Km/hr

All fo the above

A runner is able to run 100 meters in 20 seconds. What is the average speed of this runner in m/s?

5 m/s

0.2 m/s

120 m/s

80 m/s

During an investigation on speed, a ball rolls a distance of 3.6 meters. It does this in a time of 1.2 seconds. What is the average speed of the ball in m/s?

3 m/s

0.3 m/s

4.8 m/s

2.4 m/s

A student travels a distance of 9 kilometers in 1.5 hours. What is the average speed of this student in km/h?

6 km/h

0.17 km/h

13.5 km/h

10.5 km/h

10.

During a trip, a family is able to travel 140 kilometers in time of 2 hours. What is the average speed of the family during this portion of the trip?

70 km/h

0.014 km/h

280 km/h

142 km/h

11.

A rabbit is hopping away from a predator. The table shows the distance and times the rabbit traveled. What is the rabbit's speed?

5 m/min

8 m/min

20 m/min

0.5 m/min

12.

What two measurements are needed to calculate average speed?

Distance and Time

Volume and Mass

Mass and Time

Speed and Distance

13.

What is the formula for average speed?

Average Speed = Total Time $\div$ Total Distance

Average Speed = Total Time + Total Distance

Average Speed = Total Distance $\div$ Total Time

Average Speed = Total Distance $\times$ Total Time

14.

Scott drives a Jeep 12 km east, then 4 km north, then finally 3 km west. He traveled a total distance of:

5 km

10 km

13 km

19 km

15.

A ping-pong ball rolls forward 6 meters, and bounces backward 3 meters. It traveled a total distance of:

9 meters

6 meters

3 meters

0 meters

16.

Liza is swimming laps from one end of a 50 meter pool to the other. Going from one end to the other is considered one lap. If she swims four complete laps, which statement is TRUE?

Her distance and displacement are both zero.

Her distance is zero, but her displacement is 200 meters.

Her distance is 200 meters, but her displacement is zero.

Her distance and displacement are both 200 meters.

17.

Ivan walks 10 meters west to the water fountain, then runs 2 meters east to his class to avoid a lockout. His displacement would be:

8 meters

8 meters, east

8 meters, west

12 meters

18.

Distance and direction of an object's change in position from a starting point

displacement

distance

motion

reference point

19.

A golf ball accelerates off a tee at 15m/s², changing its velocity from 0m/s to 50 m/s down the fairway. How long did it take the golf ball to accelerate?

750 seconds

35 seconds

0.3 seconds

3.3 seconds

20.

A ball of clay is thrown at a wall at a velocity of 28.0 m/s. After it hits the wall, it takes 0.020 s to stop. What is the acceleration of the clay when it hits the wall?

1400 m/s²

-1400 m/s₂

0.56 m/s²

-0.56 m/s²

21.

A box sliding down an inclined plane attains a velocity of 27 m/s in 3 seconds from rest. Find the acceleration.

30 m/s

24 m/s²

9 m/s²

81 km/hr

22.

A dog runs with an initial speed of 7.5 m/s on a waxed floor. It slides to a stop in 15 seconds. What is the acceleration?

-7.5 m/s

-7.5 m/s²

-0.5 m/s²

7.5 mi//hr

23.

A car starts from rest at a stop light and reaches 20 m/s in 3.5 s. Determine the acceleration of the car.

2.2m/s²

7.0m/s²

5.7m/s²

70m/s²

24.

Acceleration is defined as the CHANGE in

time it takes for one place to move to another place.

velocity of an object.

distance divided by the time interval

velocity divided by the time interval

25.

Why does a car accelerate as it round a corner at a constant speed?

Its direction changes

It doesn't

It slows down

Its speeds up

26.

Determine the motion of the car.

at rest

constant velocity

speeding up

slowing down

27.

A roller coasters accelerates from an initial velocity of of 6.0 m/s to a final velocity of 70 m/s over 4 seconds. What's the acceleration?

24 m/s²

18 m/s²

16 m/s²

16 m/s

28.

A negative acceleration means that your object is _____.

not accelerating

not moving

speeding up

slowing down

100 %

8.IIIB. STUDY GUIDE SCIENCE

Total questions: 28

Worksheet time: 30mins

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