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force and motion 2

Total questions: 50

Worksheet time: 4hrs 10mins

Name
Class
Date
1.
What type of forces cancel each other out and do not cause motion to occur?
a)
Balanced forces
b)
Jedi forces
c)
Unbalanced forces
d)
Balanced porches
2.
This picture is an example of what type of force?
a)
Friction
b)
Magnetic
c)
Gravitational
d)
Electric
3.

Determine the magnitude of x-component of the 1000-N tension force at a 30-degree angle.

a)

952.41 N

b)

304.81 N

c)

866.03 N

d)

500 N

4.

How much force will produce equilibrium on the system?

a)

200 N

b)

350 N

c)

500 N

d)

700 N

5.

What are balanced forces?

a)

Forces of the same size, in opposite directions

b)

Forces of the same size, in the same direction

6.

Two forces on an object are in the same direction. How do we calculate the resultant force?

a)

Take away one from the other

b)

Multiply them

c)

Divide one by the other

d)

Add them together

7.

How will this object move?

a)

It won't move.

b)

It will move to the right.

c)

It will move to the left.

d)

It will move up.

8.
Balanced or Unbalanced?
a)
Balanced 
b)
Unbalanced
9.

What is the resultant force?

a)

40 N, Left

b)

0 N, Balanced

c)

400 N, Right

d)

40 N, Right

10.

What is the resultant force?

a)

400 N, Up

b)

400 N, Down

c)

800 N, Up

d)

800 N, Down

11.

What is the resultant force?

a)

17 N, Left

b)

6N, Right

c)

None of the above

12.
What is 'drag' another name for?
a)
dressing up
b)
air resistance
c)
friction
d)
weight
13.
What do we call the forwards force produced by an aeroplane's engine or propeller?
a)
thrust
b)
friction
c)
weight
d)
gravity
14.

Which situation experiences forces in equilibrium?

a)

a car moving down a hill with increasing velocity

b)

a durian falls from a tree

c)

a rocket accelerates upward

d)

a ship floating above the sea surface

15.

Diagram shows a stationary trolley of mass 1.4 kg on an inclined plane.

What is the magnitude of the force, F ?

a)

7.0 N

b)

12.7 N

c)

16.2 N

d)

28.0 N

16.

Diagram shows an aeroplane flying at constant altitude and velocity.

Which Physics concept explains the above situation?

a)

Resultant force

b)

Resolution of forces

c)

Forces in equilibrium

17.

Diagram shows a boy is pulling a 50 kg box along a rough floor.

Which combination of forces F1 and F2 will produce an acceleration of 2 m s-2?

a)

F1 : 100N F2 : 200N

b)

F1 : 200N F2 : 400N

c)

F1 : 300N F2 : 600N

d)

F1 : 400N F2 : 800N

18.

A constant force of 20 N acts on a block placed on a rough surface as shown in Diagram.

If the friction is 5 N, the block will move with

a)

constant velocity

b)

constant acceleration

c)

increasing acceleration

d)

decreasing acceleration

19.

Diagram shows a man is pulling a sledge with a rope.

Which of the following will move the sledge forward with the maximum acceleration?

a)

Small angle , Small force

b)

Small angle , Big force

c)

Big angle , Small force

d)

Big angle , Big force

20.
A late traveler rushes to catch a plane, pulling a suitcase with a force directed 30.0° above the horizontal. If the horizontal component of the force on the suitcase is 60.6 N, what is the force exerted on the handle?
a)
95.6
b)
53.0
c)
70.0
d)
65.2
21.

As the angle of the incline increases, what happens to the normal force?

a)

The normal force increases

b)

The normal force decreases

c)

The normal force is not affected by the incline

d)

The normal force is only dependent on the force due to gravity

22.

Which shows the free body diagram of a concert-goer sitting on a hill, enjoying the show?

a)

(1)

b)

(2)

c)

(3)

d)

(4)

e)

(5)

23.

Sophia is being pulled at a constant velocity to the right. Her net force

a)

is zero

b)

is positive

c)

is negative

d)

is dependent on the force with which she is pulled

24.

Is the object in equillibrium?

a)

Yes

b)

No

c)

Not enough information

25.

Is the object in equillibrium?

a)

Yes

b)

No

c)

Not enough information

26.

Is the object in equillibrium?

a)

Yes

b)

No

c)

Not enough information

27.

A 3200-kg rocket is fired vertically with 50,000-N of force. What is the net force on the rocket?

a)

18,640-N

b)

50,000-N

c)

46,800-N

d)

31,260-N

28.

A 25-kg turkey is standing on a 10-kg platform suspended by two ropes. What is the weight of the turkey/platform system?

a)

35-N

b)

343-N

c)

3.6-N

d)

235-N

29.

A 25-kg turkey is standing on a 10-kg platform suspended by two ropes. If the tension in each rope is the same, fins the tension in one of the ropes.

a)

35-N

b)

343-N

c)

17.5-N

d)

171.5-N

30.
Are forces balanced or unbalanced when a marble speeds up rolling down a ramp?
a)
Balanced
b)
Unbalanced
31.
Which Type of Force is this BEST showing?
a)
Electrical
b)
Gravitational
c)
Weak
d)
Tension
32.
Any object resting against a surface feels
a)
tension force
b)
buoyant force
c)
normal force
d)
frictional force
33.

The forces on this chandelier are...

a)

Gravity

b)

Gravity and Normal

c)

Gravity and Tension

d)

Gravity, Tension, Friction, and Applied

34.

A chandelier is hanging from the ceiling. If the force of gravity on the chandelier is 120 N, the force of tension must be ...

a)

0 N

b)

12 N

c)

60 N

d)

120 N

35.

A squirrel sits on the ground and eats a donut. If the ground pushes up on the squirrel with a force of 11 N, The squirrel and donut together weigh ...

a)

less than 11 N

b)

Exactly 11 N

c)

More than 11 N

36.
A newton is equivalent to which of the following quantities?
a)
kg•m/s2
b)
kg•(m/s)2
c)
kg
d)
kg•m/s
37.
A waitperson carrying a tray with a platter on it tips the tray at an angle of 12° below the horizontal. If the gravitational force on the platter is 5.0 N, what is the magnitude of the force parallel to the tray that tends to cause the platter to slide down the tray? (Disregard friction.)
a)
5.0
b)
4.9
c)
1.0
d)
0.42
38.
What is the y component of the vector given in the diagram?
a)
77N
b)
92N
c)
120N
d)
60N
39.

when the net force does not equal zero

a)

balanced force

b)

force vector

c)

net force

d)

unbalanced force

40.

when objects are balanced

a)

equilibrium

b)

mass

c)

distance

d)

magnitude

41.

A man pulls a block of stone with 250 N of force. The angle of the force is upward at  40°40\degree  to the level of the ground.  How much of the force is parallel to the ground?

a)

250 N

b)

160.7 N

c)

191.5 N

d)

166.7 N

42.
Find h
a)
35.60
b)
35.00
c)
35.71
d)
61.03
43.
A 10 N force and a 30 N force act on an object in opposite directions.  What is the net force on the object?
a)
40 N
b)
30 N
c)
20 N
d)
10 N
44.
In the free-body diagram shown above, which of the following is the gravitational force acting on the balloon?
a)
5120
b)
4050
c)
950
d)
1520
45.
Which statement describes a vector?
a)
It has magnitude but no direction
b)
It has direction but no magnitude
c)
It has both direction and magnitude
d)
It has constant magnitude but no
 direction
46.
What is the net force?
100 N        230 N
<------        --------->
a)
30 N to the right
b)
230 N to the right
c)
130 N to the right
d)
This is a balanced force
47.

Physical quantities which have only magnitude.

a)

Vector

b)

Scaler

c)

None of these

48.

Speed is a ----- quantity

a)

Vector

b)

Scaler

c)

Both

49.

______is a vector quantity.

a)

Time

b)

Force

c)

Length

d)

Speed

50.

S.I unit of weight is

a)

Newton

b)

Newton meter

c)

Gram

d)

Kilogram

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