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Force and Pressure Review

Total questions: 55

Worksheet time: 45mins

Name
Class
Date
1.
_____ = mass x acceleration
a)
Gravity
b)
Strength
c)
Force
d)
Weight
2.
The picture shows
a)
balanced forces
b)
unbalanced forces
c)
acceleration
d)
movement
3.
Does mass change?
a)
Not usually
b)
Yes
4.
Can weight change?
a)
Yes, if the force of gravity changes.
b)
No, not significantly.
5.
If two objects have the same mass, the object acted on by a _______  ________ will have the greatest change in speed.
a)
smaller force
b)
greater force
c)
greater velocity
d)
smaller velocity
6.
This force causes objects to slow down, speed up, or change direction. __________________
a)
Unbalanced Force
b)
Balanced Force
Balanced
c)
Strong Force
d)
Equal Force
7.
What force is equal in strength but opposite in direction?
a)
Strong Force
b)
Balanced Force
c)
Equal Force
d)
Unbalanced Force
8.
If a force is applied in the same direction an object is moving, the object will _____________.
a)
Speed Up
b)
Slow Down
c)
Change Direction
d)
Stop
9.
An object at rest will stay at rest and an object in motion will stay in motion unless acted on by an unbalanced force. This is Newton's ______ Law of Motion.
a)
First
b)
Second
c)
Third
d)
Fourth
10.
Force= Mass x Acceleration. This is Newton's ______ Law of Motion.
a)
First
b)
Second
c)
Third
d)
Fourth
11.
Every action has an opposite and equal reaction. This is Newton's ______ Law of Motion.
a)
First
b)
Second
c)
Third
d)
Fourth
12.
What is the net force of an object that is not moving?
a)
0N
b)
100N
c)
Upward force
13.
If an object is traveling at constant velocity, which two forces will be equal?
a)
weight and net
b)
applied and frictional
c)
net and frictional
d)
net and applied
14.
In what units is weight measured?
a)
m/s2
b)
m/s
c)
kg
d)
N
15.
Any push or pull on an object.
a)
force
b)
velocity 
c)
inertia
d)
momentum
16.
The force that opposes motion between two surfaces in contact with each other.
a)
inertia
b)
friction
c)
momentum
d)
gravity
17.
Which of the following is the same as a Newton?
a)
kg*m/sec/sec
b)
kg*m/sec
c)
m/sec/sec
d)
m/sec
18.
The combination of all the forces acting on an object is the...
a)
net force
b)
action force
c)
reaction force
d)
balance force
19.
When a heavy football player and a light one run into each other, who exerts more force?
a)
The heavy one
b)
The light one
c)
They are equal
d)
there is no such thing as force
20.
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
21.
What is Newton's First Law known as? The Law of
a)
Friction
b)
Mass
c)
Inertia
d)
Gravity
22.
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 
23.
What can a force do?
a)
all of the above
b)
start a motion
c)
stop a motion
d)
change the direction of the motion
24.
Which law explains why when you put a book on a table the table pushes on the book
a)
3rd law
b)
4th law
c)
1st law
d)
2nd law
25.
What is the speed of an object that travels 60 meters in 4 seconds?
a)
240 m/s
b)
15 m/s
c)
0.067 m/s
d)
15 mph
26.
A measurement of how fast an object is moving
a)
Velocity
b)
Speed
c)
Vector
d)
Acceleration
27.
A description of the speed and direction of an object's motion
a)
Velocity
b)
Speed
c)
Acceleration
d)
Vector
28.
Can be measured in seconds (s)
a)
Distance
b)
Time
c)
Speed
d)
Acceleration
29.
What is the formula to calculate speed?
a)
Speed = time/distance
b)
Speed = distance/time
c)
Speed = distance x time
d)
Speed = time x distance
30.
Which of the following is a unit for acceleration?
a)
km/s
b)
m/s2
c)
mi/hr
d)
ft
31.
Can be measured in meters per second (m/s)
a)
Distance
b)
Time
c)
Speed
d)
Acceleration
32.
Acceleration only takes place when things speed up. 
a)
True
b)
False
33.
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
34.
A drag racer accelerated from 0 m/s to 200 m/s in 5 s.  What was the acceleration?
a)
0 m/s
b)
40 m/s2
c)
-40 m/s2
d)
40 m/s
35.
Distance and direction of an object's change in position from a starting point
a)
displacement
b)
distance
c)
motion
d)
reference point
36.

What is the equation used to calculate pressure?

a)

force/mass

b)

area/force

c)

mass/volume

d)

force/area

37.

S.I. unit for pressure is

a)

Pa

b)

N m-1

c)

Psi

d)

mm Hg

38.

1 Pascal is equivalent to a force of

a)

1 N/m2

b)

1 Nm

c)

1 Nm2

d)

1 N/m

39.

What would the pressure be when a 500 N force is exerted on an area of 0.75 m2?

Give your answer to 3 significant figures.

(a)  

40.

What would the pressure be when a 650 N man stands on the ground and the surface area of each shoe is 0.325 m2?

(a)  

41.
If the horse reared up on 2 legs what effect would it have on the pressure?
a)
it will exert half the pressure it did before
b)
it will exert the same pressure it did before
c)
it will exert twice the pressure it did before
d)
it will exert four times the pressure it did before
42.

Army tank tracks are useful for travelling through the mud because..

a)

they decrease the force the vehicle exerts on the ground

b)

they increase the force the vehicle exerts on the ground

c)

they decrease the pressure the vehicle exerts on the ground

d)

they increase the pressure the vehicle exerts on the ground

43.

As the space in a container gets smaller, the _______________________ decreases.

a)

pressure

b)

volume

c)

heat

44.
Where would you find the largest pressure?
a)
At the bottom of the ocean
b)
At the top of Mt Everest
c)
Close to ground on the Scotch oval
d)
In a rockpool on the Great Barrier Reef
45.
Pressure decreases when the surface area over which a force is applied increases
a)
True
b)
False
46.

Which situation produces more force on the floor?

a)

standing on one foot

b)

standing on two feet

c)

standing on four feet

d)

all produce the same force

47.

Which situation produces more pressure on the floor?

a)

standing on one foot

b)

standing on two feet

c)

standing on four feet

d)

all produce the same pressure

48.

Convert 2.45 kPa to Pascals

a)

2.45 Pascals

b)

1862 Pascals

c)

34.78 Pascals

d)

2.45 x 103 Pascals

e)

0.00245 Pascals

49.

As the volume of a gas sample decreases, gas molecules collide with surrounding surfaces more frequently, resulting in ____________.

a)

a decrease in pressure

b)

an increase in pressure

c)

anincrease in volume

d)

a decrease in temperature

50.

Which tool is used to measure air pressure?

a)

anemometer

b)

barometer

c)

rain gauge

d)

thermometer

51.

What is the S.I. unit of Force?

a)

Pascal (Pa)

b)

N/m2

c)

Nm

d)

Newton (N)

52.

The straps and handles of travel bags are made broad to (a)   the pressure

on our shoulders.

53.

Tires on many vehicles are inflated to about ________ pounds per square inch (psi).

a)

10

b)

240

c)

32

d)

1,200

54.

Which of the following is an application of pressure in everyday life?

a)

Using a knife to cut vegetables

b)

Reading a book

c)

Listening to music

d)

Watching television

55.

Which of the following is a unit of pressure other than Pascal?

a)

Newton

b)

Joule

c)

Atmosphere

d)

Watt

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