Define the pitch of these below musical note frequency?

Q1 I. There are 9 different types of energy. In a suitable small table, could you list and in your words define or describe the energy forms.

ii. In a typical filament light bulb
⦁ 3KJ of energy is supplied, providing the equivalent of 1.75KJ of light, 1.15KJ of heat and 100J of sound energy. Represent this in the form of a Sankey diagram.
⦁ Why must the energy supplied equal the energy output?
⦁ A sealed vacuum flask of hot water will cool over time. In terms of energy, explain why.
iii. The national grid uses multiple different sources of energy to generate our electricity. In a suitable list, provide the energy source (materials).

1.1,
1.2,
1.3

Q2 i. The symbol for density is the Greek letter “rho”. With this in mind, please show the formula for density in fluids and clarify the variables.

ii. A gold cylinder is suspended in water. Cylinder volume is 1 x 10-6 m3.Density of gold is 19,300 kg/m3. What is the mass of the cylinder?

iii. Define Archimedes principle and in your own words explain with
examples/diagrams what this means to you if you crossed from a wooden boat to a steel boat.

iv. A 100-cm3 block of lead that weighs 11 N is carefully submerged in water. One cm3 of water weighs 0.0098 N.
⦁ What volume of water does the lead displace?
⦁ How much does that volume of water weigh?
⦁ What is the buoyant force on the lead?
⦁ Will the lead block sink or float in the water?

v. The same 100-cm3 lead block is carefully submerged in a container of mercury. One cm3 of mercury weighs 0.13 N.
⦁ What volume of mercury is displaced?
⦁ How much does that volume of mercury weigh?
⦁ What is the buoyant force on the lead?
⦁ Will the lead block sink or float in the mercury?

2.1,
2.2
Q3 i. There are 9 different types of forces. In a suitable small table could you list and in your own words define or describe the forces. Divide the list based on their interaction with their surroundings as well.

ii. Explain in your own words the difference between your weight and mass.
iii. From the formula for speed derive the formula for velocity and then acceleration. Besides and using the derivations of formula, show the arrangement of SI units to give the final SI units. 3.1,
3.2,
3.4
Q4 i. Lindsey rode her moped to the corner shop to buy some bread. This table shows how far she travelled from home every 20 seconds.
Time (Seconds) Distance (Metres)
0 0
20 20
40 50
60 100
80 160
100 200
120 200
140 200
160 275
180 300
200 350
220 400
240 450

ii. In total, how far was Lindsey’s journey from home to the shop?
iii. In total, how long was her journey from home to the shop?
iv. Look at the table, what was Lindsey doing between 100 and 140 seconds of her journey?
v. We can use her total distance and total time to work out her average speed for the whole trip. What is her average speed for the whole trip?
vi. Using suitable scales etc…You can now use the table to plot a distance/time graph. 3.1,
3.2,
3.4,
3.5
Q5 Using the skills, you developed from your balancing force exercises.
i. One Direction are playing in the playground. They get on the seesaw.
Niall and Harry site 0.7m away from the pivot; the others sit 0.55m away on the other side and it balances.
ii. Combined, Niall and Harry have a force of 1000N. What is the force of the rest of the band?
iii. Niall and Harry get off and are replaced by Taylor Swift. She has a force of 450N. How far away should she sit to balance the seesaw?

iv. Sheldon and Penny are having a bet. The loser has to sing “Soft Kitty” to the winner. Raj and Howard are sat equidistant from the pivot. Penny thinks that Bernadette would need to sit twice as far away as Raj to balance Howard; Sheldon thinks it’s three times as far.

Raj and Howard both have a force of 60N and are sat 0.9m apart. Bernadette has a force of 43N. Who will have to sing “Soft Kitty”?
3.5
Q6 i. Define electrical conductors and Insulators, with explanation of their uses?

ii. Define these terms: – a) Current. b)Voltage. c) Potential difference. d)Resistance. e)Power. f) DC & AC.

iii. Write each components name front of it?

iv. On a modern hairdryer handle it states:
1600 W 230 V 50 Hz
a) Write an equation which shows the relationship between current power and voltage?

b) Calculate the current in the hairdryer when it is on full power. Show clearly how you get your answer?

4.1
4.3
4.4
4.5

4.2
Q7 i. The diagram shows the oscilloscope traces of two different sounds P and Q. The oscilloscope setting is exactly the same in both cases.

P and Q sound different.
Write down two differences in the way they sound.
Explain your answers as fully as you can.

ii. a) Using by diagrams define wave frequency, wavelength and amplitude?
b) Calculate the wavelength of a sound wave in water of frequency 300Hz if its speed is 1500m/s.?
iii. a) What is Electromagnetic radiation?
b) Define and explain their practical uses of: –
c) Gama rays?
d) X- rays?
e) ultra-violate

iv) a) Define the pitch of these below musical note frequency?

b) The diagram below shows the appearance of a sound wave on an oscilloscope. Draw a second diagram showing the appearance of a sound wave of lower pitch but greater loudness.

5.2
5.1
5.4
5.5