Random Trivia I
Random Trivia II
SIS Vocab and Relationships/Trends
SIS Variables
Atoms, Molecules, Elements, Compounds
Chemical and Physical Properties and Changes
Calculations
Energy Types + Transformations
Heat and Electricity
100
This planet is nicknamed the Red Planet.
What is Mars?
100
The Earth takes this length of time to orbit the Sun once.
What is 365.25 days?
100
These elements in group 18 are atomic elements.
Bonus: describe what it means that they are atomic elements.
What is Helium, Neon, Argon, Krypton, Xenon or Radon?
They exist as individual atoms, not bonded together in a molecule.
100
These are the substances you start with in a chemical reaction.
What are reactants?
100
Calculate the amount of gravitational potential energy an object has if it has a m = 300 kg, g = 9.8 m/s2 and h = 15 m.
Ep = mgh = 300 x 9.8 x 15 = 44 100 J
100
This is the type of stored energy found in a stretched rubber band or compressed spring.
What is elastic potential energy?
100
This method of heat transfer requires contact between objects/particles.
What is conduction?
200
This is the main green dinosaur in the Mario games.
Who is Yoshi?
200
This is the fruit that the Minions are completely obsessed with eating.
What are bananas?
200
These are all of the things that a graph needs.
Independent variable on x-axis, dependent variable on y-axis
Title that relates independent and dependent variable
Axes must have consistent scale and label containing unit.
Correct type of graph - line graph for continuous variables, column graph for a discrete variable
Drawn in pencil and with a ruler
200
This is the centre of an atom.
What is the nucleus?
200
Group 1 elements have these in common, including the fact that they explode in contact with water.
What are chemical properties?
200
A 300 g stone is thrown at 10 m/s. Calculate its kinetic energy.
Ek = 1/2 mv2 = 1/2 x 0.3 x 102 = 15 J
200
These are the five forms of kinetic energy.
What is kinetic, thermal/heat, light, sound and electrical energies?
200
This method of heat transfer can occur through the vacuum of space.
What is radiation?
300
According to the famous song, we don't talk about which family member?
Who is Bruno?
300
These types of animals only eat plants.
What are herbivores?
300
Describe the trend of the following graph.
As the time increases, the coffee cup temperature decreases.
As at 0min the coffee cup was 90 °C, while 20 minutes later the temperature is 40 °C.
300
A scientist is testing different brands of fertiliser to see how they help grass grow. Suggest an independent, dependent and at least two controlled variables for this experiment.
IV: brand of fertiliser
DV: height of grass
CV: amount of fertiliser, area of grass, amount of water and sunlight, type of grass.
300
Sand has the chemical name silicon dioxide. Write the formula for silicon dioxide if it contains one silicon for every two oxygens.
SiO2
300
Using an example, contrast physical and chemical properties.
Physical properties: colour, texture, boiling and melting point, density, solubility, - can be detected/measured without a change or just with a physical change.
Chemical properties: stability, reactivity, flammability, pH, toxicity - describes how a substance reacts, can only be detected or measured using a chemical change.
300
A resistor has a voltage of 12 V across it and a current of 3 A through it. Calculate its resistance.
R = V/I = 12/3 = 4
R= V/I = 12/3 = 4@Omega
300
This is the flow diagram for a battery powered torch.
Chemical Energy -> Electrical Energy -> Light Energy + Thermal Energy
300
This is called thermal equilibrium.
What is "when two objects in contact are at the same temperature, so no thermal energy flows between them."?
400
The adult human body has this many bones.
What is 206?
400
This is the name of the famous burger that SpongeBob SquarePants cooks all day at the Krusty Krab.
What is the Krabby Patty?
400
List an example of a non-metal and their predicted properties.
Example: Carbon, Nitrogen, Oxygen, Fluorine, Phosphorus, Sulfur, Chlorine, others.
Properties: dull lustre, electrical/thermal insulators, brittle, not ductile, lower density, generally lower melting and boiling points.
400
This is the main thing that is different between a physical and chemical change.
What is "whether or not a new substance has been produced"?
400
An electric toy car uses 200 J of electrical energy to produce 60 J of kinetic energy, 20 J of sound energy and 120 J of thermal energy.
eta = 60/200 = 30%
400
Write a flow diagram for all energy transformations mentioned in the following scenario. A human is riding on a stationary bike to run a generator.
Chemical Energy -> Kinetic Energy -> Thermal Energy + Electrical Energy
400
Name the two types of circuit and state what they keep the same (voltage, current, resistance).
Series have the same current.
Parallel have the same voltage drop.
500
This gas is absorbed by plants during photosynthesis.
What is carbon dioxide (CO2)?
500
In this year, The Lion King was released. Bonus Points: was Mr Vardy alive when this came out?
What is 1994?
Bonus: No
500
Contrast compounds and molecules.
Compounds are two or more elements bonded together.
Molecules are two or more atoms bonded together.
500
This would be the word equation for when magnesium is burnt in oxygen to produce magnesium oxide.
Bonus: State the role that magnesium oxide plays in this reaction.
What is "magnesium + oxygen -> magnesium oxide"?
Bonus: product.
500
Calculate Q if 2 kg of water (c = 4180 J/kg/K) is heated up by 30 K.
Q = mcdT = 2 x 4180 x 30 = 250 800 J
500
Contrast energy transfers and energy transformations
Transformations - energy changes from one type to another, same object.
Transfer - energy moves from one object to another, same type of energy.
500
This is what a voltmeter measures and how it is connected in a circuit?
What is voltage and parallel?