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P-3 Pulse Check #2

Total questions: 28

Worksheet time: 1hrs 19mins

Name
Class
Date
1.

Acceleration is

a)

the rate at which velocity changes.

b)

the change in velocity

c)

the rate of change

d)

when you speed up only

2.
In each of the following cases, determine where the car has no acceleration ?
a)
A car shortly after a stoplight turns green.
b)
A car approaching a red light
c)
A car with the cruise control set at 80 km/h
d)
A car turning a curve at a constant speed
3.
If you are test-driving a Bugatti Veyron and you go from 0 km/s to 124 km/s in 3.7 seconds, what was your acceleration?
a)
33.5 m/s2
b)
0.03 m/s2
c)
-33.5 m/s2
d)
-0.03 m/s2
4.

What is the final velocity of a rocket that travels for 4 seconds, has an initial velocity of 12 km/s and an acceleration of 2 km/s2?

a)

-4 km/s

b)

10 km/s

c)

20 km/s

d)

-10 km/s

5.
A golf ball accelerates off a tee at 15m/s2, changing its velocity from 0m/s to 50 m/s down the fairway. How long did it take the golf ball to accelerate?
a)
750 seconds
b)
35 seconds
c)
0.3 seconds
d)
3.3 seconds
6.

The graph shows

a)

positive acceleration

b)

negative acceleration

c)

constant acceleration

d)

increasing acceleration

7.

Is this a speed or acceleration graph?

a)

speed

b)

acceleration

8.

What is happening at segment E?

a)

acceleration

b)

deceleration

c)

constant speed

d)

no motion/object at rest

9.

What is happening at segment F?

a)

acceleration

b)

deceleration

c)

constant speed

d)

no motion/object at rest

10.

What is happening at segment B?

a)

acceleration

b)

deceleration

c)

constant speed

d)

no motion/object at rest

11.

What is happening at segment D?

a)

acceleration

b)

deceleration

c)

constant speed

d)

no motion/object at rest

12.

What is happening at segment A?

a)

no motion/object at rest

b)

constant speed

c)

deceleration

13.

A snake slithered across the sidewalk in between two sign posts. At the first sign post his speed was 1.2 m/s. At the second sign post his speed was 1.2 m/s. This is an example of...

a)

positive acceleration

b)

negative acceleration

c)

no acceleration

14.

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

15.
What Unit do we Measure Force in? 
a)
Newtons
b)
Joules
c)
Force
d)
Kilograms
16.
What is Newton's First Law
a)
F=ma
b)
Every action has an equal and opposite reaction
c)
An object at rest stays at rest, an object in motion stays in motion. 
d)
Friction 
17.
A person is pushed forward into their seatbelt when a car stops
a)
1st
b)
 2nd
c)
2 and 3
d)
3rd 
18.
Why is it harder for the boy in Image B to get down the hill?
a)
Motion
b)
Friction
c)
Work
d)
Displacement
19.
For every action, there is an equal and opposite reaction.
a)
Newton's
1st
Law of Motion
b)
Newton's
2nd
Law of Motion
c)
Newton's
3rd
Law of Motion
20.
What is Newtons 2nd law of motion?
a)
Pancakes 
b)
Force= Mass multiplied by acceleration
c)
For every action there is a equal and opposite  re-action.
d)
Law of gravity 
21.

The tendency of objects to resist a change in motion is called:

a)

Friction

b)

Inertia

c)

Gravity

d)

Velocity

22.
You push on a tree with 20 N of force. If the tree doesn't move, the tree is pushing back on you with _____of force.
a)
20N 
b)
40N 
c)
10N 
d)
70N
23.
friction is a force that acts 
a)
in the same direction as the motion
b)
opposite to the direction of the motion
c)
opposite to the applied forces
d)
the same direction as the applied force
24.
What law describes what happens if you are riding a skateboard and hit something (like a rock) with the front wheels. 
a)
Newtons 3rd law
b)
Newtons 1st law
c)
Law of gravity 
d)
Law of movement 
25.
Suppose that a sled is accelerating at a rate of 2 m/s2. If the net force is tripled then what is the new acceleration of the sled?
a)
12 m/s/s
b)
6 m/s/s
c)
12 in/s/s
d)
120 m/s/s
26.
Which would NOT be a way of reducing friction?
a)
making the surfaces smoother
b)
using lubricants such as waxes, oils, or grease
c)
changing from sliding friction to rolling friction using ball bearings
d)
Using kitty litter on snow and ice to help your car gain traction
27.
What type of friction is not moving?
a)
static
b)
sliding
c)
fluid
d)
rolling
28.
Which of the following is an example of friction that is helpful?
a)
Brakes used on a bike
b)
Tires from a car on the road
c)
Tread on the bottom of your shoes
d)
All are examples that are helpful

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