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Forces review

Total questions: 49

Worksheet time: 43mins

Name
Class
Date
1.
If these boys are pulling with the same amount of force.  What will happen?
a)
The boy in blue will win.
b)
They will not move at all.
c)
The boy in red will win.
d)
Both will fall down.
2.
This is an example of what kind of force?
a)
Balanced Force
b)
Pushing Force
c)
Gravity Force
d)
Unbalanced Force
3.
What pulls a ball back to earth?
a)
Gas
b)
Gravity
c)
Friction
d)
Molecules
4.
The measure of the pull of gravity on an object is ___________________.
a)
motion
b)
weight
c)
speed
d)
friction
5.
if you have balanced forces on a ball what happens
a)
It stays still
b)
Keeps going
c)
:(
d)
:)
6.
What is a PUSH or PULL of an object?
a)
Motion
b)
Force
c)
Friction
d)
Gravity
7.
How is gravity affected by mass?
a)
the larger the mass of the object, the greater the gravity
b)
small objects have no gravity
c)
gravity is not affected by mass of objects, whether large or small
8.
What is the standard unit force is measured in?
a)
Newtons
b)
pounds
c)
grams
d)
meters
9.
Calculate the net force of the object in the image shown.
a)
20N
b)
35N
c)
5N
d)
25N
10.
Is this a balanced or unbalance force?
a)
Balanced
b)
Unbalanced
c)
Neither one
d)
Both
11.
Which direction will the object move?
a)
Up
b)
Down
c)
Right
d)
Left
12.
Calculate the net force of the object.
a)
10N
b)
2N
c)
15N
d)
5N
13.
Is this a balanced or unbalanced force?
a)
Balanced
b)
Unbalanced
c)
Neither
d)
Both
14.
Which direction will the object move?
a)
Right
b)
Left
c)
Up
d)
Down
15.
What is the net force of this object?
a)
0N
b)
50N
c)
25N
d)
5N
16.
Is this a balanced or unbalanced force?
a)
Balanced
b)
Unbalanced
c)
Neither
d)
Both
17.
If a force causes an object to move, it's considered a(n) __________________ force.
a)
Balanced
b)
Unbalanced
c)
Massive
d)
Strong
18.
The forces represented by the arrows in the diagrams are applied to the four objects that are at rest on a table. Which object is most likely to move to the right?
a)
Object W
b)
Object X
c)
Object Y
d)
Object Z
19.
Imagine a bat swinging with a force of 1200 N, hitting a ball pitched with a force of 400 N. At what net force does the ball move away from the bat?
a)
1600 N
b)
800 N
c)
400 N
d)
Net force of 0 N
20.
What is the FORCE? 
a)
5 N
b)
10 N
c)
400 N
d)
0 N
21.
Is it BALANCED? 
a)
Yes
b)
No
22.
The FORCE that PULLS things down or back to EARTH.
a)
Speed
b)
Gravity
23.
What is the net force?
a)
17 N Right
b)
3 N Right
c)
3 N Left
d)
17 N Left
24.
If an object has MORe _______, it will have more gravitational force. 
a)
mass
b)
distance
25.
A person would weigh more on Jupiter than on the Earth because . . .
a)
Jupiter has more mass, and therefore more gravity
b)
Jupiter has less mass, and therefore more gravity
c)
Jupiter has more mass, and therefore less gravity
d)
Jupiter has less mass and therefore less gravity
26.
Two factors effecting the magnitude of force of gravity between 2 objects are...
a)
weight and mass 
b)
distance and weight 
c)
mass and matter 
d)
mass and distance 
27.
Gravity attracts all objects towards one another. 
a)
True
b)
False 
28.
As distance between objects increases the pull of gravity...
a)
increases 
b)
decreases 
c)
Stays the same 
29.
The amount of matter in an object.
a)
force 
b)
mass
c)
weight 
d)
pressure 
30.

What is a pendulum?

a)

a weight tied on a string that swings back and forth

b)

something you write with

c)

a musical instrument

31.

What is resistance to motion called?

a)

friction

b)

inertia

c)

electricity

d)

force

32.

Why can rubbing two sticks together quickly start a fire?

a)

the friction between the two sticks produces heat

b)

because they are made of wood and wood burns

c)

the fraction between two sticks creates a whole piece big enough to burn

33.

In the big pendulum Izzy and Zoe made, how does each component swing?

a)

each individual block swings back and fourth

b)

all the blocks swing in the same direction at the same time

c)

the blocks all stop moving at the same time

d)

they don't move

34.
How much force is needed to accelerate a 3kg skateboard at 5m/s2. 
a)
8N
b)
1.6N
c)
0.6N
d)
15N
35.
How much force is needed to accelerate a 25kg bowling ball at 2m/s2
a)
50N
b)
5N
c)
12.5N
d)
100N
36.

What is the force on a 1000 kg elevator that is falling freely at 9.8 m/sec2

a)

102.04 n

b)

9,800 n

c)

980 n

d)

103 n

37.
A 50 kg skater pushed by a friend accelerates 5 m/sec2.  How much force did the friend apply?
a)
45 N
b)
15 N 
c)
10 N
d)
250 N
38.
You give a shopping cart a shove down the isle. The cart is full of groceries and has a mass of 18 kg. The cart accelerates at a rate of 3 m/s2. How much force did you exert on the cart?
a)
6N
b)
54N
c)
21N
d)
18N
39.
Coach Camacho and his wife were trying to move their new chair. Coach Camacho pulls with a force of 30N while Mrs. Camacho pushes with a force of 25 N in the same direction. What is the net force?
a)
15N
b)
5N
c)
55N
d)
25N
40.

Which are forces?

a)

thrust

b)

drag

c)

weight

d)

air foil

e)

lift

41.

For a plane to go up, ______________ has to be same or greater than weight.

a)

lift

b)

drag

c)

thrust

42.

For a plane to go forward, ____________ has to be equal or greater than drag.

a)

lift

b)

weight

c)

thrust

43.

Lift is

a)

the downward force of gravity pulling on mass.

b)

resistance of air when an object moves through it.

c)

a forward force.

d)

an upward pull.

44.

What 2 forces work against a plane's ability to fly?

a)

weight

b)

lift

c)

thrust

d)

drag

45.

Thrust is

a)

the downward force of gravity pulling on mass.

b)

resistance of air when an object moves through it.

c)

a forward force.

d)

an upward pull.

46.

Weight is

a)

the downward force of gravity pulling on mass.

b)

resistance of air when an object moves through it.

c)

a forward force.

d)

an upward pull.

47.

What word best describes this shape?

a)

airplane

b)

airfoil

c)

airway

d)

airon

48.

Identify which force is weight

a)
b)
c)
d)
49.

Identify which force is thrust

a)
b)
c)
d)