when an object changes its position compared to a reference point.
a)
acceleration
b)
speed
c)
motion
d)
reference point
3.
total distance traveled divided by total time taken to travel that distance
a)
velocity
b)
motion
c)
acceleration
d)
average speed
4.
the rate at which speed or velocity changes
a)
acceleration
b)
average speed
c)
motion
d)
reference point
5.
an object that appears to stay in place and that helps you detect motion in another object
a)
acceleration
b)
average speed
c)
motion
d)
reference point
6.
Is this a speed or acceleration graph?
a)
speed
b)
acceleration
7.
What is happening at segment E?
a)
acceleration
b)
deceleration
c)
constant speed
d)
no motion/object at rest
8.
What is happening at segment B?
a)
acceleration
b)
deceleration
c)
constant speed
d)
no motion/object at rest
9.
Is this a speed or acceleration graph?
a)
speed
b)
acceleration
10.
What is happening at segment A?
a)
no motion/object at rest
b)
constant speed
c)
deceleration
11.
A runner crossed the 1 mile marker of a race running at a speed of 9 miles per hour. She crossed the finish line running at a speed of 9.8 miles per hour. Did the runner change her velocity?
a)
Yes
b)
No
12.
A runner crossed the 1 mile marker of a race running at a speed of 9 miles per hour. She crossed the finish line running at a speed of 9.8 miles per hour. This is an example of...
a)
positive acceleration
b)
negative acceleration
c)
no acceleration
13.
The formula for calculating speed is...(x means multiply; / means divide)
a)
time x distance
b)
distance x speed
c)
distance / time
d)
time / distance
14.
Speed = _______________
a)
Distance + time
b)
Distance – time
c)
Distance x time
d)
Distance / time
15.
Velocity = _______________
a)
Speed – direction
b)
Speed + direction
c)
Speed x direction
d)
Speed / direction
16.
At what speed would a car have to move in order to travel 20 kilometers in 2 hours.
a)
5 km/hr
b)
10 km/hr
c)
20 km/hr
d)
40 km/hr
17.
What is the definition of velocity?
a)
A force that opposes motion
b)
Uniform circular motion
c)
The speed of an object in a particular direction
18.
What is this?
"This airplane is traveling at 500 mph, West"
a)
Speed
b)
Velocity
c)
Acceleration
19.
A helicopter flies west 200 miles in 2 hours. What is its velocity?
a)
99 mph
b)
100 mph south
c)
400 mph south
d)
297 mph south
20.
What two things must you know to determine speed?
a)
distance and direction
b)
direction and time
c)
speed and direction
d)
time and distance
แป้นคำตอบ
Speed, Acceleration and Velocity
คำถามทั้งหมด: 20
1.
b)
velocity
2.
c)
motion
3.
d)
average speed
4.
a)
acceleration
5.
d)
reference point
6.
b)
acceleration
7.
d)
no motion/object at rest
8.
c)
constant speed
9.
a)
speed
10.
b)
constant speed
11.
a)
Yes
12.
a)
positive acceleration
13.
c)
distance / time
14.
d)
Distance / time
15.
b)
Speed + direction
16.
b)
10 km/hr
17.
c) The speed of an object in a particular direction