Mac Kinematic Equations

1.

Multiple Choice

2 mins

1 pt

A car is traveling to the right with a speed of 29m/s when the rider slams on the accelerator to pass another car. The car passes in 110 m with constant acceleration and reaches a speed of 34m/s. We want to find the acceleration of the car as it sped up. What equation should you choose?

v=vi+at

d=vit+1/2at²

vf²=vi²+2ad

2.

Multiple Choice

30 sec

1 pt

What happens to the velocity of a ball as it is dropped off a cliff?

It decreases at a uniform rate

It increases at a uniform rate

It is constant

It increases at a non-uniform rate

3.

Multiple Choice

2 mins

1 pt

A boat travels 12.0 m while it reduces its velocity from 9.5 m/s to 5.5 m/s. What is the magnitude of the boat’s acceleration while it travels the 12.0 m?

1.3 m/s²

2.5 m/s²

3.0 m/s²

7.5 m/s²

4.

Multiple Choice

30 sec

1 pt

Kinematic equations can only be used when you have a constant ....

Position

Velocity

Acceleration

Time

5.

Multiple Choice

30 sec

1 pt

The unit we use to measure acceleration is ___.

m/s

m

s

m/s²

6.

Multiple Choice

2 mins

1 pt

A ball is dropped from a building. How fast is it traveling after falling for 1.77 s? (Hint: It's a free falling object)

14.76 m/s

17.35 m/s

18.91 m/s

20.03 m/s

7.

Multiple Choice

2 mins

1 pt

A car starts from rest and accelerates uniformly over a time of 5.21 seconds for a distance of 110 m. Determine the acceleration of the car. Choose the appropriate equation.

v=vi+at

d=vit+1/2at²

vf²=vi²+2ad

8.

Multiple Choice

2 mins

1 pt

If Michael Jordan has a vertical leap of 1.29 m, then what is his takeoff speed if his acceleration is -9.8 m/s² and his velocity at the top of his leap is 0 m/s? Which equation would you use?

v=vi+at

d=vit+1/2at²

v²=vi²+2ad

9.

Multiple Choice

2 mins

1 pt

An engineer is designing the runway for an airport. Of the planes that will use the airport, the lowest acceleration rate is likely to be 3 m/s². The takeoff speed for this plane will be 65 m/s. All airplanes will start from rest. Assuming this minimum acceleration, what is the minimum allowed length for the runway?

v=vi+at

d=vit+1/2at²

vf²=vi²+2ad

10.

Multiple Choice

30 sec

1 pt

The unit we use to measure speed is ___.

m/s

m

s

m/s²

11.

Multiple Choice

30 sec

1 pt

The unit we use to measure distance is ___.

m/s

m

s

m/s²

12.

Multiple Choice

30 sec

1 pt

The unit we use to measure time is ___.

m/s

m

s

m/s²

13.

Multiple Choice

30 sec

1 pt

Which of the following symbols represent speed when time is zero?

v_f

v_i

a

d

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