Energy
What can energy never be?
Created or destroyed
Does the density of an object need to be greater than or less than the density of water in order for it to float?
Less than the density of water.
What is the unit of measurement for energy in a circuit?
Volts/ V
What is the term to describe the height of a soundwave?
Amplitude
Name the main family members of 'The Simpsons' family.
Homer, Marge, Bart, Lisa, Maggie
What kind of energy is it when an object is moving?
Kinetic energy
Define the term: upthrust
The upwards force on an object from the liquid or gas it is floating in.
What do you need to increase if the resistance increases in a circuit?
The voltage.
What happens to a soundwave if you increase the frequency?
The pitch will increase.
How many episodes were there of the original Dragon Ball Z animated series?
291
What affects the amount of stored potential energy?
The position of the object
The titanic struck an iceberg and sank in 1912. The iceberg was floating. Why could the iceberg float on the ocean surface?
The iceberg was less dense than the ocean and so was able to float.
If a circuit has a charge of 0.4A and a resistance of 30 ohms, what is the voltage?
12v
V= I*R
V= 0.4 * 30
Constructive interference
What world record does the artist Lisa hold for her solo track 'Money'?
First K-pop track by a solo artist to reach 1 billion streams on Spotify
When energy is lost to its surroundings it is called dissipation. What is the most common form of energy that is dissipated?
Thermal energy
Which of the following equations is not correct.
a) Density = mass/volume
b) Mass= Density x Volume
c) Density = volume/mass
C) Density = volume/mass
What is the difference between the current in a series circuit and a current in a parallel circuit?
In a series circuit, current flows through all of the components, it is the same at all points of the circuit.
In a parallel circuit, the current flows through different components and so is different depending on the location in the circuit.
Define the term: wavelength
The length of one complete wave
Who won the 2022 NBA championship finals?
Golden State Warriors
If a kettle uses 1800j to boil 1cm3 of water, how much energy is required to boil 250cm3 of water? Give your answer in the most appropriate units.
0.45mJ or 450kJ
A clown is attending a birthday party and needs to bring some balloons. He went to the shop to buy the balloons but they could only fill half of the balloons with Helium gas. The rest of the balloons the clown had to inflate using a hand pump. On the way to the party, half of the balloons float away, but the other half don't. Which balloons floated away and why?
The balloons inflated with Helium gas floated away because they were less dense than the air and therefore the up thrust was the resultant force.
What is the purpose of a thermistor and give an example of something one might be used in.
A thermistor is a variable resistor affected by temperature. A refrigerator/oven/AC/ central heating system.....
Sound 1 is produced by playing a string that vibrates 300 times in 2 seconds.
Sound 2 is produced by playing a string that vibrates 1000 times in 5 seconds.
The amplitude of the two sounds was measured, and sound 1 has an amplitude which was twice that of sound 2.
Which sound is louder?
Sound 1
Name any three Michael Jackson songs.
Thriller, Billie Jean, Smooth Criminal, The Way You Make Me Feel, ABC, The Man In The Mirror, Bad, Black or White, Rock With You, Beat It, Wanna be Startin' Something, Don't Stop 'Til You Get Enough, I Want You Back