Worksheets11.3 Acceleration
Total questions: 15
Worksheet time: 9mins
1.What is acceleration?
the rate at which speed increases
the time an object’s velocity increases
the rate at which displacement changes
the rate at which velocity changes
A sports car can accelerate from 0 m/s to 28 m/s in four seconds. What is the acceleration of the car?
24 s
7 m/s2
27 m/s
27 m/s2
If you were to sketch a distance-time graph and a speed-time graph for an object experiencing constant acceleration, what would they look like?
Both graphs would be linear (straight lines), with the distance-time graph being steeper.
Both graphs would be linear (straight lines), with the speed-time graph being steeper.
Both graphs would be nonlinear (curved).
The speed-time graph would be linear (straight lines); the distance-time graph would be nonlinear (curved).
Which of the following is an example of negative acceleration?
Mike starts riding his bike and uses the pedals to go from 0 km/h to 20 km/h.
Mike pedals up a hill and gradually slows from 20 km/h to 5 km/h.
Mike sits on his bike at the top of the hill and rests.
Mike coasts downhill without pedaling, going from 0 km/h to 15 km/h.
The acceleration of an object at a specific point in time is the :
instantaneous acceleration
momentary acceleration
positive acceleration
numerical acceleration
TRUE or FALSE: If an object experiences a steady velocity change in a straight line, it is undergoing constant acceleration.
TRUE
FALSE
In terms of speed and directions, in what ways can an object accelerate?
change in speed only
change in direction only
change in speed or direction
constant speed and direction
What is the acceleration of an object in free fall due to Earth's gravity?
9.8 m/s2
9.8 m/s
39.2 m/s
19.6 m/s2
TRUE or FALSE: A horse on a carousel that is moving at a constant speed is accelerating.
TRUE
FALSE
How do you find the 'change in velocity' when calculating the acceleration of an object?
Final velocity - Initial velocity
Initial velocity - final velocity
Final velocity - time
Initial velocity - distance
What are the common units used to express acceleration?
m/s
m/s2
miles/hour
seconds
TRUE or FALSE: When the final velocity is less than the initial velocity of an object, the acceleration is negative.
TRUE
FALSE
A skateboarder begins down a ramp at a speed of 1.0 m/s. After 3 seconds, her speed has increased to 4.0 m/s. Calculate acceleration.
1.0 m/s
1.0 m/s2
3.0 m/s2
1.7 m/s2
How fast was the object represented this graph moving after 2.5 seconds?
10 m/s
10 m/s2
10 m
2.5 m/s2
Describe the motion of this object in the first 10 seconds.
The object is not moving
The object is moving at a constant speed
The object is speeding up
The object is slowing down
