Quiz about Oct. 16 - Speed, Velocity, Acceleration, and Motion Practice.

Question 1

A runner races in the 100 meter dash.  It takes her 10 seconds to finish.  What is her average speed?

Accepted Answer

10 m/s

Answer

1000 m/s

Answer

100 seconds

Answer

10 seconds

Question 2

What is the formula to calculate speed?

Accepted Answer

S = d/t

Answer

S = t/d

Answer

S = d x t

Answer

S = t x d

Question 3

You walk 10 meters to math class in 20 seconds. Your average speed is

Accepted Answer

0.5 m/s

Answer

2 m/s

Answer

200 m/s

Answer

5 m/s

Question 4

Find the velocity of a plane that traveled 3000 miles west in 5 hours.

Accepted Answer

600 mph west

Answer

65 mph west

Answer

6 mph west

Answer

6000 mph west

Question 5

Danica gets her car to go from a speed of 100 mi/hr to a speed of 150 mi/hr in 5 seconds. What is her acceleration?

Accepted Answer

10 mi/hr/sec

Answer

- 5 mi/hr/sec

Answer

50 mi/hr/sec

Answer

-25 m/hr/sec

Question 6

Which of the following is an example of acceleration?

Accepted Answer

a motorcycle going around a curve

Answer

a ball on the ground

Answer

a boat sailing east at 15 miles per hour on calm water.

Answer

a jet flying 300 miles per hour on a straight horizontal path

Question 7

Which of the following is NOT an example of acceleration?

Accepted Answer

a car on cruise control on a straight flat highway

Answer

the Moon orbiting Earth

Answer

a car coming to a stop

Answer

a ball rolling down a ramp

Question 8

A change in speed or direction is known as _____.

Accepted Answer

acceleration

Answer

speed

Answer

velocity

Answer

displacement

Question 9

What is speed?

Accepted Answer

how much distance is covered over a period of time

Answer

how far you go

Answer

how fast you accelerate

Answer

the change in the location of a object

Question 10

What is velocity?

Accepted Answer

speed in a specific direction

Answer

the quickness of an object

Answer

the location of an object

Answer

acceleration

Question 11

Shona cycles at an average speed of 8km/h. How far has she travelled if she cycles for 4 hours?

Accepted Answer

32km

Answer

55km

Answer

43km

Answer

32miles

Question 12

How far will a person go if they jog for 2 hours at a speed of 12 km/hr?

Accepted Answer

24 km

Answer

6 km

Answer

0.5 km

Answer

10 km

Question 13

Which of the following is a unit for acceleration?

Accepted Answer

m/s2

Answer

km/s

Answer

mi/hr

Answer

ft

Question 14

An object is _____ if its position changes relative to another object.

Accepted Answer

in motion

Answer

at reset

Answer

a frame of refence

Answer

magical

Question 15

A place or object used for comparison to determine if another object is in motion is called a

Accepted Answer

reference point

Answer

comparison point

Answer

point of view

Answer

motion detector

Question 16

Acceleration is a change in....

Accepted Answer

velocity

Answer

speed

Answer

displacement

Answer

position

Question 17

Acceleration is defined as the CHANGE in

Accepted Answer

velocity divided by the time interval

Answer

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

Answer

velocity of an object.

Answer

distance divided by the time interval

Question 18

A negative acceleration means that your object is _____.

Accepted Answer

slowing down

Answer

not accelerating

Answer

not moving

Answer

speeding up

Question 19

Acceleration only takes place when things speed up.

Accepted Answer

False

Answer

True

Question 20

A school bus drives 35 mph down the street and slows as it approaches the stop sign. This is an example of..

Accepted Answer

negative acceleration

Answer

positive acceleration

Answer

velocity

Answer

centripetal acceleration

Question 21

final speed minus initial speed, divided by time

Accepted Answer

acceleration

Answer

speed

Answer

relative motion

Question 22

Acceleration is a change in ________.

Accepted Answer

velocity

Answer

direction

Answer

speed

Answer

distance

Question 23

You are walking in a straight line at a consistent speed. Do you have acceleration?

Accepted Answer

no

Answer

yes

Question 24

As you walk you make a right turn. Do you have acceleration?

Accepted Answer

yes

Answer

no

Question 25

You are walking and start to slow down. Do you have acceleration?

Accepted Answer

yes

Answer

no

Question 26

Which shows a velocity?

Accepted Answer

10 m/s north

Answer

10 m

Answer

10 m/s

Answer

10 m/s squared

Question 27

Which of the following is an example of velocity?

Accepted Answer

55 m/h south

Answer

25 m/s

Answer

1500 km/hr

Answer

all of the above

Question 28

How are speed and velocity different?

Accepted Answer

Velocity has a direction while speed does not.

Answer

Speed has a distance while velocity does not.

Answer

There is no difference between speed and velocity.

Answer

Speed is calculated distance / time while velocity is calculated time / distance.

Question 29

A car maintains the speed of 15 m/h while turning left. Which of the following is true?

Accepted Answer

The car changed velocity because the direction changed.

Answer

The car changed velocity because it slowed its speed.

Answer

The car did not change velocity.

Answer

The car changed velocity because the speed and direction changed.

Answer

The car changed velocity because it increased its speed.

Question 30

The rate at which velocity changes in a given amount of time is know as which of the following?

Accepted Answer

Acceleration

Answer

Direction

Answer

Distance

Answer

Speed

Answer

Motion

Question 31

Acceleration: is the rate of change in ___________.

Accepted Answer

velocity

Answer

speed

Answer

distance

Answer

displacement

Question 32

In each of the following cases, determine where the car has no acceleration ?

Accepted Answer

A car with the cruise control set at 80 km/h

Answer

A car shortly after a stoplight turns green.

Answer

A car approaching a red light

Answer

A car moving down a ramp

Question 33

Acceleration only takes place when things speed up.

Accepted Answer

False

Answer

True

Question 34

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

Accepted Answer

16 m/s2

Answer

24 m/s2

Answer

18 m/s2

Answer

16 m/s

Question 35

A drag racer accelerated from 0 m/s to 200 m/s in 5 s.  What was the acceleration?

Accepted Answer

40 m/s2

Answer

0 m/s

Answer

-40 m/s2

Answer

40 m/s

Question 36

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

Accepted Answer

7m/s2

Answer

0.7m/s2

Answer

14m/s2

Answer

none of the above

Question 37

When are you undergoing an acceleration in a car?

Accepted Answer

All of the above

Answer

speed up

Answer

slow down

Answer

make turns

Question 38

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

Accepted Answer

9 m/s2

Answer

30 m/s

Answer

24 m/s2

Answer

81 km/hr

Question 39

How could a jogger accelerate?

Accepted Answer

speed up, slow down, turn corners

Answer

run uphill then downhill

Answer

run 10 miles N then run 10 miles back

Answer

jog, stop, rest, start again

Question 40

What kind of quantity has both a magnitude and a direction?

Accepted Answer

vector

Answer

scalar

Answer

frame of reference

Answer

time

Question 41

What is the formula to calculate speed?

Accepted Answer

Speed = distance/time

Answer

Speed = time/distance

Answer

Speed = distance x time

Answer

Speed = time x distance

Question 42

Which shows a distance?

Accepted Answer

10 m

Answer

10 m/s

Answer

10 m/s north

Answer

10 m/s squared

Question 43

Which shows a velocity?

Accepted Answer

10 m/s north

Answer

10 m

Answer

10 m/s

Answer

10 m/s squared

Question 44

How can acceleration be zero?

Accepted Answer

car has constant speed and is traveling on a straight path

Answer

a car runs out of gas and slowly rolls to a stop

Answer

a car decreases speed at a constant rate until it comes to rest

Answer

the car travels round trip and is back at the starting point

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