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1st Nine Weeks Benchmark

Total questions: 40

Worksheet time: 48mins

Name
Class
Date
1.

Which is an example of Newton's First Law of Motion?

a)

a soccer ball as it accelerates out of the classroom window

b)

a soccer ball sits motionless on the ground

c)

a soccer ball rolling down a hill

d)

a soccer ball slows down after it is kicked through the grass

2.

Imagine you travel to another planet. What will change as you walk around the surface of the planet- your mass or your weight?

a)

Mass

b)

Weight

c)

Both

d)

Neither

3.
Friction is a force that acts in a(n) ___________ direction relative to a moving object.
a)
similar
b)
opposite
c)
parallel
d)
perpendicular
4.
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 
5.

A box sliding down an inclined plane attains a velocity of 27 m/s in 3 seconds from rest. Find the acceleration.

 a = vf−vita\ =\ \frac{v_f-v_i}{t}  

a)

30 m/s

b)

24 m/s2

c)

9 m/s2

d)

81 km/hr

6.
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
7.
Which graph represents zero acceleration (constant velocity)?
a)
A
b)
B
c)
C
d)
D
8.
A kid applies a force of 70 N to a ball over 1.1 meters. How much work did he do on the ball? 
a)
77 J
b)
7.7 J 
c)
0.7 J 
d)
770 J 
9.
An inclined plane wrapped around a rod forms this simple machine 
a)
lever
b)
pulley
c)
screw
d)
wedge 
10.
What is the net force and in what direction will the block move?  
a)
40 N Right
b)
60 N Right
c)
60 N Left
d)
40 N Left
11.
Two skaters begin at rest. Skater 1 has a smaller mass than Skater 2. After they push off each other,...
a)
Skater 1 experiences a greater change in momentum
b)
Skater 2 experiences a greater change in momentum
c)
Skater 1 has a greater velocity than Skater 2
d)
Skater 1 experiences a greater force
12.
Which object listed below has the greatest momentum?
a)
A 0.05 kg object rolling at 0.2 m/s.
b)
A 0.15 kg object rolling at 2 m/s.
c)
A 0.15 kg object rolling at 1 m/s
d)
A 0.4 kg object rolling at 2 m/s.
13.

According to Newton's Laws, for every action there is an ....

a)

equal and opposite reaction.

b)

equal and parallel reaction.

c)

unequal and opposite reaction.

d)

unequal and unrelated reaction.

14.
If net force acting on object is 0, then the force is considered to be..
a)
Balanced
b)
Unbalanced
c)
Equal in Direction
d)
Distance/Time
15.
What is Newton's First Law known as? The Law of
a)
Friction
b)
Mass
c)
Inertia
d)
Gravity
16.
When a cannon fires a cannonball we observe Newton's third law. Which force is the reaction force?
a)
The cannon moving forward
b)
The cannonball moving forward
c)
The cannon moving backward
d)
The cannonball moving backward
17.
A person steps out of the boat and onto the dock.  As the person moves forward onto the dock, the boat moves backward.  Which statement best describes the backward motion of the boat as the person steps forward?
a)
For every action there is an equal and opposite reaction.
b)
Every mass exerts a force on every other mass.
c)
An object at rest tends to stay at rest.
d)
Friction opposes the motion of an object.
18.
A person in car  slides to the right when going through a very sharp left turn on the highway. 
a)
1st Law
b)
2nd Law
c)
3rd Law
19.
What is the definition of "weight"?
a)
the force in which gravity pulls on an object
b)
the time it takes to get on a ride 
c)
the amount of matter in an object
d)
the size of an object
20.
 267.5 N unbalanced force applied to push a stuffed chair across the room, causing an acceleration of 4.2 m/s2. What is the mass of the chair?
a)
26.75 kg
b)
63.69 kg 
c)
263.3 kg 
d)
1123.5 kg
21.
How is work defined?
a)
the amount of energy 
b)
the transfer of force over a distance
c)
rate of work in a given time
d)
the change in distance in a given time
22.
What is the equation for force?
a)
F= mass × acceleration
b)
F = mass × distance
c)
F= distance/time
d)
F = mass/time 
23.
Is this an example of work?
A teacher applies a force to a wall and becomes exhausted.
a)
True
b)
False
24.

What is effort (input) force?

a)

the force one exerts on a machine

b)

the force which an effort force must overcome in order to do work on an object via a simple machine.

c)

the force the machine exerts on a object

d)

the output work times the input distance

25.
No machine in existence has 100% efficiency due to ____________________.
a)
magic
b)
friction
c)
smoke
d)
input
26.

What is the mechanical advantage of this pulley?

a)

1

b)

2

c)

3

d)

4

27.
Two examples of a pulley...
a)
knife & axe blade
b)
lightbulb & screw
c)
flagpole hoist & window blinds
d)
catapult & teeter totter
28.
An inclined plane wrapped around a rod forms this simple machine 
a)
lever
b)
pulley
c)
screw
d)
wedge 
29.
A simple machine that consists a rigid bar that pivot about a fixed point
a)
lever
b)
pulley
c)
wheel and axle
d)
fulcrum 
30.
Stairs
a)
wedge
b)
pulley
c)
inclined plane
d)
wheel and axle
31.

A _ is an educated guess or testable prediction

a)

control

b)

hypothesis

c)

dependent variable

32.

An organized procedure for testing a hypothesis is a(n) _.

a)

experiment

b)

independent variable

c)

constant

33.

The factor that is adjusted by the experimenter is the _.

a)

control

b)

independent variable

c)

dependent variable

34.

The factor whose value depends on the independent variable is the _.

a)

experiment

b)

constant

c)

dependent variable

35.

A rule of nature that sums up related observations to describe a pattern in nature is a _.

a)

scientific law

b)

hypothesis

c)

scientific theory

36.

A _ is an explanation based on experiments or the most logical explanation.

a)

hypothesis

b)

scientific law

c)

scientific theory

37.

The amount of space occupied by an object is _.

a)

mass

b)

volume

c)

density

38.

A _ is a visual display of information or data.

a)

graph

b)

picture

c)

diagram

39.

What type of graph is shown?

a)

line

b)

bar

c)

circle

40.

In a line graph, the _ axis is called the y-axis.

a)

vertical

b)

horizontal

c)

independent variable

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