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pribadi depok grade 11 ease

Total questions: 42

Worksheet time: 41mins

Name
Class
Date
1.

The quantity that tells us about the turning effect of a force is called?

a)

Energy Force

b)

Work Force

c)

Moment Force

d)

Strong Force

2.
What is the anticlockwise moment acting on this crane?
a)
80,000Nm
b)
100,000Nm
c)
120,000Nm
d)
140,000Nm
3.
Moment is a quantity that tells turning effect of a force about turning point. 
a)
TRUE
b)
FALSE
4.
Moment is smaller when force is smaller
a)
TRUE
b)
FALSE
5.
Moment is bigger if the force acts further  from turning point
a)
TRUE
b)
FALSE
6.
Quantity of turning effect of a force does not depend of acting degree of force on object.
a)
TRUE
b)
FALSE
7.
This type of force is an attraction between two objects
a)
contact
b)
gravity
c)
friction
8.
This type of force resist motion between two surfaces that are pressed together
a)
contact
b)
gravity
c)
friction
9.

What is defined as a push or pull?

a)

force

b)

motion

c)

vector

d)

speed

10.
What force holds the planets in motion around the sun?
a)
Magnetic
b)
Electrical
c)
Gravitational
d)
Air Resistance
11.
What type of force?
a)
Magnetic
b)
Gravitational
c)
Applied
d)
Normal
12.
What force brings the pencil down?
a)
Applied
b)
Magnetic
c)
Normal
d)
Gravitational
13.
What is the net force?
a)
40 N left
b)
0 N Balalnced
c)
400 N right
d)
40 N right
14.
What is speed?
a)
how far you go
b)
how much distance is covered over a period of time
c)
how fast you accelerate
d)
the change in the location of a object
15.
We use levers to make work easier.?
a)
True
b)
False
16.

The moment of a force causes an object to

a)

move forward

b)

move backward

c)

stop moving

d)

turn about a fixed point

17.

The turning effect of a force on a door is greater when it is applied at

a)

A point near the hinges and perpendicular to the door

b)

A point near the hinges and parallel to the door

c)

A point far away from the hinges and perpendicular to the door

d)

A point far away from the hinges and parallel to the door

18.

Two equal and oppositely directed forces acting on an object will be in equilibrium

a)

Only if they act on the same point on the object

b)

If they are separated by a distance

c)

When they are balanced by a third force

d)

when their moments about the same point are equal

19.

The diagram shows a light beam pivoted at one end. What is the effort required to lift the load?

a)

50

b)

67

c)

100

d)

200

20.

Jack has a weight of 300 N and sits 2.0 m from the pivot of see-saw. Jill has a weight of 450 N and sits 1.5 m from pivot. Who will move down?

a)

Jack

b)

Jill

c)

Both of them

d)

None of them

21.

What is the force F needed to balance the bar shown?

a)

3

b)

4

c)

6

d)

8

22.

A light metre rule is allowed to pivot freely at the zero end. The other end is supported by a spring balance. A weight of 200N is then hung at the 40cm mark. The metre rule stays horizontal. What is the reading on the spring balance?

a)

80

b)

40

c)

8

d)

4

23.

A force of 120 N is applied perpendicularly on a spanner at a distance of 9 cm from a nut. The torque produced by the force will be

a)

12 Nm

b)

10.8 Nm

c)

15 Nm

d)

12.59 Nm

24.

A boy of weight 600N sits on the see-saw as shown at a distance of 1.5m from the pivot. What is the force F required at the other end to balance the see-saw?

a)

450 N

b)

350 N

c)

4.5 N

d)

200 N

25.

The figure shows a uniform metre rule pivoted at the 50cm mark. 125g and 200g weights hang from the rule as shown. Calculate where you would hang a 25g mass in order to balance the rule horizontally

a)

20 cm from pivot on the side of 125 g mass

b)

10 cm from pivot on the side of 125 g mass

c)

40 cm from pivot on the side of 200 g mass

d)

10 cm from pivot on the side of 200 g mass

26.
The diagram shows a wheelbarrow and its load, which have a total weight of 150 N. This is supported by a vertical force F at the ends of the handles. 
What is the value of F?
a)
75 N
b)
150 N
c)
225 N
d)
300 N
27.
The tool used to measure the mass of a substance or object is a ______________.
a)
balance
b)
graduated cylinder
c)
ruler
d)
thermometer
28.
Jack has a rock. The rock has a mass of 14g and a volume of 2cm3. What is the density of the rock?
a)
7 mL
b)
7 g/cm3
c)
28 g/cm3
d)
1/7 g/cm3
29.
Put the liquids in order from most dense to least dense?
a)
4, 3, 2, 1
b)
1, 2, 3, 4
c)
3, 4, 2, 1, 
d)
4, 3, 1, 2
30.
Which box has a higher density?  
a)
Box A
b)
Box B
c)
cannot be determined
d)
they are the same
31.
In general what is the most dense form of matter?
a)
solid
b)
liquid
c)
gas
d)
plasmas
32.
What is the formula for density?
a)
density = mass x volume
b)
density = mass / volume
c)
density = mass + volume
d)
density = mass - volume
33.
Calculate the density of the cube.
a)
2 g/cm3
b)
4 g/cm3
c)
6 g/cm3
d)
8 g/cm3
34.
Calculate the density of the cube.
a)
2 g/cm3
b)
4 g/cm3
c)
6 g/cm3
d)
8 g/cm3
35.
Calculate the density of the cube.
a)
.33 g/cm3
b)
.4 g/cm3
c)
.6 g/cm3
d)
.5 g/cm3
36.
What pressure does a 4000N horse exert on the ground if each foot is 10cm2?
a)
40 N/cm2
b)
100 N/cm2
c)
400 N/cm2
d)
10 N/cm2
37.
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
38.
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
39.
Which of these animals would probably cause the greatest pressure on the ground?
a)
A fat cow with big feet
b)
A fat cow with small feet
c)
 A calf with big feet
d)
A calf with small feet
40.
The amount of force pushing on an area is the definition of....
a)
Fluid
b)
Viscosity
c)
Barometer
d)
Pressure
41.

A balance is being used to find the weight of a baby. The weight of the basket can be ignored. At equilibrium, the pivot is nearer to the 40 N balancing weight than to the baby.

What is the weight of the baby?

a)

less than 40 N

b)

40 N

c)

more than 40 N

d)

impossible to tell without a scale on the beam

42.

A ball is dropped on to a hard surface and bounces. It does not bounce all the way back to where it started, and so has not regained all of its original gravitational potential energy.

Which statement accounts for the loss of gravitational potential energy?

a)

Energy was destroyed as the ball hit the ground.

b)

Energy was destroyed as the ball travelled through the air.

c)

The chemical energy and elastic energy of the ball have increased.

d)

The internal (heat) energy of the ball and its surroundings has increased.