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M2 - Cat A

Total questions: 32

Worksheet time: 20mins

Name
Class
Date
1.

Atoms form ions because they want to have a (a)   outer shell.

2.

Explain why chlorine and fluorine form covalent bonds

a)

They are both metals

b)

They are both non-metals

c)

One is a metal and one is a non-metal

d)

They are both semi-metals

3.

Chose the compounds

a)

Sand

b)

Saline (salt water)

c)

Air

d)

Water

4.
One hot summer, you remember you left a cup of water outside. A few weeks later, you saw that the cup was empty and you remember the cup having water. What happened to the water?
a)
It evaporated
b)
It underwent deposition
c)
It melted
5.
What causes a change in the state of matter?
a)
physical properties
b)
chemical energy
c)
temperature
6.
What do these isotopes of carbon all have in common?
a)
neutrons & mass number
b)
atomic number and neutrons
c)
atomic number and electrons
d)
protons, atomic number, and mass number
7.
If the number of electrons in an atom changes you make a(n) __________________.
a)
ion
b)
isotope
c)
new element
d)
isomer
8.
Change from Gas to Solid is called........
a)
Sublimation
b)
Deposition
c)
Fusion
d)
condensation
9.

Covalent bonds are formed between

a)
Metals and Non-metals
b)

Two non-metals

c)

Two metals

10.

Solutions, Suspensions and Colloids are all types of

a)
Chemical reactions
b)
Mixtures
c)
Elements
d)
Compounds
11.

the SI units for density are

a)

kg/m3kg/m^3

b)

kg/cm3kg/cm^3

c)

g/cm3g/cm^3

d)

g/m3g/m^3

12.

What type of substance has the following properties;

  • Has a definite shape and volume.

  • Has a fixed surface.

  • Usually has a high density.

  • Cannot easily be compressed.

  • Expands a little on heating.

a)
Gas
b)
Liquid
c)
Solid
d)
Plasma
13.

When a substance evaporates what happens to the surrounding environment?

a)
The surrounding environment gets cooler
b)
The surrounding environment gets warmer
c)
The surrounding environment remains the same
d)
The surrounding environment gets darker
14.

When a substance freezes what happens to the surrounding environment?

a)
The surrounding environment gets warmer
b)
The surrounding environment gets colder
c)
The surrounding environment remains the same
d)
The surrounding environment disappears
15.

For a 1st class lever to be balanced, which of these statements is true?

a)

Movements each side of the fulcrum are Equal and act in opposite directions

b)

The resistance, near the fulcrum is balanced by a smaller force at a greater distance

c)

The resistance, near the fulcrum is balanced by a larger force at a greater distance

d)

Movements each side of the fulcrum are Equal and act in the same direction

16.

What type of gearing transfers power between two shafts at an angle to each other?

a)

Sun and Planet Gearing

b)
Bevel Gearing
c)
Spur Gearing
d)
Worm Gearing
17.

What type of gearing is used for high torque multiplication?

a)
Helical Gearing
b)
Bevel Gearing
c)
Worm Gearing
d)
Spur Gearing
18.

Which of these formulae correctly calculates efficiency?

a)

η=WinWout×100\eta=\frac{W_{in}}{W_{out}}\times100

b)

η=WinWout\eta=\frac{W_{in}}{W_{out}}

c)

η=WoutWin×100\eta=\frac{W_{out}}{W_{in}}\times100

d)

η=VRMA\eta=\frac{VR}{MA}

19.

if the Mechanical Advantage ratio is 3:1 what would the output force be in relationship to the input force?

a)

The output force would be 3 times the input force

b)

The output force would be equal to the input force

c)

The output force would be half of the input force

d)

The output force would be 1/3 of the input force

20.

How much distance would a car travel if it was moving at 15 m/s for 1 minute?

a)
900 m
b)
1500 m
c)
60 m
d)
15 m
21.

a piece of wood measuring 2cm x 4cm x 3cm weighing 60g would have a density of

ρ=mV\rho=\frac{m}{V}

a)

500kg/m3500kg/m^3

b)

1500kg/m31500kg/m^3

c)

2500kg/m32500kg/m^3

d)

3500kg/m33500kg/m^3

22.

What surface area would be required to produce a force of 150N if a piston of 30cm^2 was being pushed by a 60N force?

P=FAP=\frac{F}{A}

a)

75 cm^2

b)

150 cm^2

c)

300 cm^2

d)

450 cm^2

23.

If a liquid rises in temperature what happens to the viscosity?

a)
The viscosity of the liquid decreases
b)
The viscosity of the liquid increases
c)
The viscosity of the liquid remains the same
24.

How much work is done when a barrel is pushed for 3m with a force of 20N?

W=f×dW=f\times d

a)
60 Joules
b)
20 Joules
c)
3 Joules
d)
6 Joules
25.

covert 40°C-40\degree C to Fahrenheit

F=95C+32F=\frac{9}{5}C+32

a)

40°F-40\degree F

b)

104°F104\degree F

c)

32°F-32\degree F

d)

0°F0\degree F

26.

covert 41°F41\degree F into Celsius

C=59(F32)C=\frac{5}{9}\left(F-32\right)

a)

5.0°C

b)

-5.0°C

c)

41.0°C

d)

105.8°C

27.

What is the acceleration due to gravity in SI units?

a)

9.8m/s29.8m/s^2

b)

10m/s210m/s^2

c)

9.8km/s29.8km/s^2

d)

10km/s210km/s^2

28.
  1. What is the SI unit of work?

a)
Joule
b)
Newton
c)
Watt
d)
Pascal
29.

Changing the spinning rotors mass in a gyroscope will effect its

a)

Rigidity

b)

Precession

c)

Orientation

30.

What are the SI units for the coefficient of friction?

a)
Newton
b)
Pascal
c)
No units
d)
Kilogram
31.

What type of friction requires the least force to overcome?

a)
Static friction
b)

Sliding friction

c)
Rolling friction
d)
Fluid friction
32.

How would you find the resultant of two or more vectors that act in the same direction along the same line

a)
By subtracting the magnitudes of the vectors
b)
By multiplying the magnitudes of the vectors
c)
By dividing the magnitudes of the vectors
d)
By adding the magnitudes of the vectors