This occurs when an object speeds up, slows down, or changes direction. (a)
เลือกจากคำด้านล่าง
Speed
Velocity
Acceleration
2.
You rode your dirt bike in a straight line at a constant speed of 10 km/h. Did you accelerate?
a)
Acceleration occurred because speed changed.
b)
Acceleration did not occur because neither speed nor direction changed.
c)
Acceleration occurred because you changed directions.
3.
You rode a four-wheeler through the mountains (curves were frequent, and you had to slow down for them). You accelerated because when you slow down, the speed
(a) . You also accelerated because the curves mean you (b)
เลือกจากคำด้านล่าง
did not change
changed
changed direction
did not change direction
4.
Acceleration is
a)
the change in velocity per unit of time, increase, decrease
Example:s2m
b)
distance divided by time usually represented in m/s in science
c)
the speed and direction that an object is traveling in
5.
Changing direction is a form of
(a)
เลือกจากคำด้านล่าง
velocity
acceleration (or negative acceleration)
6.
Match
Deceleration (negative acceleration)
Acceleration (change speed, direction)
No acceleration = no change
7.
Objects moving with circular motion are constantly (a) because direction ( (b) ) is constantly changing
เลือกจากคำด้านล่าง
accelerating
velocity
8.
A decrease in speed is known as
negative acceleration or (a)
เลือกจากคำด้านล่าง
tenacious slowing
deceleration
positive acceleration
9.
An object moving with constant velocity has (a) because there is no change .
เลือกจากคำด้านล่าง
constant acceleration
no acceleration
a slow speed
a faster speed
10.
Objects moving with circular motion are (a) because direction is constantly changing
เลือกจากคำด้านล่าง
velocitizing
never accelerating
mass
constantly accelerating
แป้นคำตอบ
Velocity or Acceleration?
คำถามทั้งหมด: 10
1.
Acceleration
2.
b) Acceleration did not occur because neither speed nor direction changed.
3.
changed, changed direction
4.
a)
the change in velocity per unit of time, increase, decrease