Download Crossword for Acceleration

Writing Skill Practice for Different types of forces
I.
Rearrange the following sentences into a logical order.
II. Write out the paragraph obtained.
1. Gravitational force, magnetic force and electric force
belong to the second class.
2. They arise from the physical contact of two bodies.
3. The force used to pull a spring or push a cart is an example
of contact forces.
4. Another class of forces is known as action-at-a-distance
forces.
5. There are two classes of forces.
6. These forces do not involve physical contact between
interacting bodies.
7. One class is called contact forces.
8. Frictional force and force produced by air pressure belong
also to this class.
Wordsearch puzzle for ‘The law of inertia’
I. Find English words from the letter grid.
Hint: These words may go straight in any direction.
II. Use as many words found as possible to construct a statement about
the law of inertia. The answer is not unique
A
B
C
D
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G
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M
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Crossword for Acceleration
１ ２ ３ ４ ５ ６ ７ ８ ９ 10 11 12
a
b
c
d
e
f
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h
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j
k
l
m
Across
Down
a1
c5
d1
1a and 4a
If a body is not moving,
it is 4a
1a
4l The symbol for a subunit of length
6a The rate of reduction of speed
8e A fixed proportion
10e and 12c
A vector quantity has a
12c
and a
10e
f1
h1
j1
Same as deceleration
A physical quantity with only a magnitude
A ______ chart can be changed to a
speed-time graph
The time rate of change of velocity
The change in position
The time rate of change of displacement
k9 A basic physical quantity
l1 The unit of time
m9 A basic quantity for measurement
CROSSWORD PUZZLE iN MECHANICS
1
2
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8
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Across
A2
B8
C15
D1 &
D11
E15
F5
F9
G1
G12
I2
I6
J1
L7
M1
M8
N13
O1
O11
P10
A2 is the product of force and moment arm.
A moving object has B8 energy.
The abbreviation C15 is often used to denote potential energy.
Wind and D11 are D1 energy sources.
The abbreviation of the British unit of length is E15.
The abbreviation of the unit of pressure is F5.
If there is no F9 resistance, a coin and a feather will fall at the same rate.
G1 is the part of physics that deals with force, motion and energy.
The SI unit of distance is G12 (in UK spelling).
The abbreviation of knockout is I2 in a boxing game.
A body is in I6 if it is at rest or in uniform motion.
The SI unit of time is J1.
The abbreviation of millisecond is L7.
The SI unit of force is M1.
Newton’s third law states that to every action, there is an equal but M8 reaction.
The abbreviation of mechanical advantage is N13.
Two or more forces can be combined and represented by a single O1 force.
O11 is the ability to do work.
The abbreviation of velocity ratio is P10.
Down
1B
1J
2I
3C
Fish has 1Blined bodies to reduce friction in swimming.
A 1J uses sound waves for underwater ranging and detection.
The abbreviation of kinetic energy is 2I.
The condition of equilibrium for rotational motion is that the sum of clockwise moments
about any point is equal to the sum of 3C moments about that point.
5F
Same as F5.
5O
The abbreviation of the British unit of mass is 5P.
6A & Newton’s first law states that a body remains in its state of rest or uniform motion unless
6M
it is acted on by an 6A force, or a nonzero 6M force.
8L & In 9B collision, some kinetic energy is converted to heat and 8L.
9B
11A A 11A quantity has magnitude and direction.
11H The 11H unit of length, mass and time are meter, kilogram and second respectively.
11L
11L is the rate of work done.
13A 13Amills can be used to generate electricity.
13F
Passenger cars have collapsible front and 13F sections to reduce the force of impact in a
collision.
13L
A 13L is a device used to measure time.
14I
The abbreviation of the British subunit of length is 14I.
14M
14M is a fluid with a very high viscosity.
16B
16N
16B energy comes from the heat under the crust of the Earth.
A 16N is a place with mechanical equipment for physical exercises.
3
7. Word search puzzle in mechanics
Direction:
1. Find English words related to the topic ‘mechanics’ from the word search grid. Words may go in
any direction. All letters are used and some letters are used more than once.
2. There are no less than 75 words hidden in the grid. Some words are just ordinary English words
commonly used in mechanics items.
3. Construct 10 sentences in a mechanics context using as many as possible words found in the grid.
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