WorksheetsMechanics: Speed and Acceleration
Total questions: 17
Worksheet time: 9mins
A measure of how far an object has travelled
speed
distance
time
velocity
A measure of how long an object has been travelling for, measured in s
time
speed
distance
acceleration
The rate of change of speed per time
velocity
speed
time
acceleration
Negative acceleration
speeding up
constant speed
deceleration
at rest / stopped
In a distance-time graph, the gradient of a sloping straight line shows
object has stopped
object is at constant speed
object is accelerating
object is returning to start position
In a distance-time graph, a horiziontal straight line shows
object has stopped
object is at constant speed
object is accelerating
object is returning to start position
In a distance-time graph, a curved line that is getting steeper and steeper shows
object is decelerating
object is at constant speed
object is accelerating
object is returning to start position
Which of the following is TRUE
60 seconds in an hour
100 seconds in a minute
60 x 60 seconds in an hour
300 seconds in half an hour
v = Δd / Δt is used to calculate speed
Δt =
Δd ÷ v
Δd × v
v ÷ Δd
none of these
v = Δd / Δt is used to calculate speed
Δd =
Δt ÷ v
Δt × v
v ÷ Δt
none of these
a = Δv / Δt is used to calculate acceleration
Δ means
small triangle
small amount
change in
initial
a = Δv / Δt is used to calculate acceleration
if an object speeds up from 0 ms-1 to 20 ms-1 in 5 s, then its acceleration is
0.4 ms-1
4 ms-2
4 ms-1
0.4 ms-2
In a speed - time graph, a horizontal line means
constant speed
constant acceleration
object has stopped
object is falling vertically
In a speed - time graph, the area under a line is
just the area under the line :)
the distance travelled by an object
the speed the object is travelling
the acceleration of the object
How do you calculate the gradient of a straight line?
rise x run
rise / run
run / rise
rise + run
What is the formula to calculate the area of a triangle
2 x base x height
0.5 x base ÷ height
1/2 x base x height
base x height
A car's motion is -1.75 ms-2. It is
accelerating
travelling at constant speed
going backwards (reversing)
decelerating
