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Q 1/50
Score 0
Which of the following statements best describes friction?
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A. It is a force that occurs between solids and liquids.
B. It is a force that occurs only on rough surfaces.
C. It is a force that occurs between solids.
D. It is a force that occurs when surfaces touch each other.
Q 2/50
Score 0
What is the importance of friction in our daily life?
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A. When walking and running, we need friction because this kind of force will stop us from sliding on a floor or a surface.
B. Friction make things move fast and will not stop stationary things from moving.
C. Friction help people or cars move or change direction easily.
D. Friction do not allow us to hold objects with our hands.
50 questions
Q.
Which of the following statements best describes friction?
1
45 sec
Q.
What is the importance of friction in our daily life?
2
45 sec
Q.
Why do we need gravity?
3
45 sec
Q.
Why a bicycle moves faster on a cemented road than on a bumpy road?
4
45 sec
Q.
A ball cannot roll continuously on a rough surface. Why?
5
45 sec
Q.
What eventually happens to a moving object when it moves along a surface?
6
45 sec
Q.
Which of the given objects below move fastest on a flat surface?
7
45 sec
Q.
A man tries to push a big box away, but he cannot move it. Of the following forces, which causes this to happen? I. Gravitational force II. Electrostatic force III. Frictional Force
8
45 sec
Q.
Which shows that friction is undesirable?
9
45 sec
Q.
A car can travel faster when going down than in going up. Why?
10
45 sec
Q.
Why is it difficult to climb up the stairs rather than to go down the stairs?
11
45 sec
Q.
Which of these will feel the biggest gravitational pull-on earth?
12
45 sec
Q.
What will happen to a baseball and a sheet of paper that are dropped at the same time from the same height without air resistance?
13
45 sec
Q.
What makes the ball thrown to the air falls back to the ground?
14
45 sec
Q.
The following are the practical applications of gravity EXCEPT
15
45 sec
Q.
If the distance between two bodies is doubled, the gravitational force between them is ___.
16
45 sec
Q.
What form of energy is produced by clapping your hands?
17
45 sec
Q.
The energy produced by vibrating object is _____.
18
45 sec
Q.
When you dip a metal spoon in a cup of hot coffee, heat from the water is transferred to the spoon. As the spoon absorbs the heat, its tiny particles vibrate faster and increase their energies. What form of energy is described?
19
45 sec
Q.
It is transported through electromagnetic waves. It can be converted to electric energy to power appliances and make things move. What form of energy is described?
20
45 sec
Q.
When heat is released from fuel and boils the water to make steam, it turns the turbine which turns the generator. This will produce _____.
21
45 sec
Q.
Which energy transformation occurs in an electric iron?
22
45 sec
Q.
Rubbing two pieces of wood together can produce heat and later turn into another form of energy.
23
45 sec
Q.
Some appliances we are using, change electrical energy into other forms. When you use a toaster to toast bread, electrical energy is changed to _____ and _____.
24
45 sec
Q.
When you lighted a lamp or candle, the chemical energy of the lamp is changed into light
25
45 sec
Q.
When you plugged a transistor radio in an electrical outlet and switch on the power button, automatically the electrical energy is turned to ____.
26
45 sec
Q.
After plugging some appliances, you have observe that after few minutes, electrical energy produced ____.
27
45 sec
Q.
When we turn on the television, electrical energy changes into light and ____.
28
45 sec
Q.
When we talk on the cellular phones, the speaker of the phone on the other end changes the electrical energy/ electromagnetic waves back into_____.
29
45 sec
Q.
In using doorbells and buzzers, electrical energy is transformed to _____,
30
45 sec
Q.
The following are functions of a simple machine, EXCEPT
31
45 sec
Q.
Which simple machine consists of sloping surface that reduces the amount of force needed to
32
45 sec
Q.
It is a straight or curved rigid bar that is free to turn about a fixed point.
33
45 sec
Q.
How will you describe a compound machine?
34
45 sec
Q.
Which simple machine allows you to gain mechanical advantage in moving object or in applying a force to an object?
35
45 sec
Q.
Which of the following is NOT a characteristics and functions of a lever?
36
45 sec
Q.
This simple machine is considered as one of the six classical simple machines which is used as an aid for raising and lowering a load.
37
45 sec
Q.
It can be used to separate two objects or portions of an object, lift an object, or hold an object in place.
38
45 sec
Q.
Simple machine used to fasten materials by the engagement of the screw thread with a similar female thread in the matching part.
39
45 sec
Q.
Which simple machine compost by wheel and rope used to lift heavy objects onto tall heights.
40
45 sec
Q.
What type of pulley used in flagpoles and clotheslines?
41
45 sec
Q.
Type of pulley where the fulcrum is at the edge of the wheel with the load at the middle of the axle and the effort at one end of the rope.
42
45 sec
Q.
It is a machine that has a small disk or shaft called an axle that is attached to a wheel.
43
45 sec
Q.
Which is an example of wheel and axle?
44
45 sec
Q.
The following are characteristics of wheel and axle EXCEPT
45
45 sec
Q.
Which of the following is NOT the function of wheel and axle?
46
45 sec
Q.
The following show proper precautionary measures in using simple machines EXCEPT ____.
47
45 sec
Q.
Which is the correct way of handling simple machines?
48
45 sec
Q.
Which of the following is NOT a safety precautions in using simple machines?
49
45 sec
Q.
Who among the four children of Nestor demonstrates the proper way of handling simple machines?
