Physics
Chemistry
Biology
Practical Skills
100
Newton’s third law states that for every action, there is an equal and opposite:
What is reaction?
100
This type of reaction occurs when an element in one compound replaces an element in another compound, resulting in the formation of a new compound.
What is a single replacement reaction?
100
This process occurs when particles move from an area of high concentration to an area of low concentration
What is diffusion
100
Why is it important to identify control variables in an experiment?
To ensure that the results are due to the independent variable alone and not affected by other factors.
200
The formula to calculate elastic potential energy stored in a spring is
where k is the spring constant and x is the extension. What does x represent?
What is the displacement or extension of the spring from its equilibrium position?
200
Draw an enthalpy profile (graph) showing an endothermic reaction with a change in enthalpy of 6kJ/mol
200
This part of an enzyme is where the substrate binds, and the chemical reaction takes place.
What is the active site?
200
You are tasked with testing the effect of fertilizer on plant growth. Describe 2 control variables you would use.
Control variables: type of plant, amount of water, sunlight, soil type.
300
Power is the rate at which work is done, and it can be calculated by this formula.
300
List 4 examples of exothermic reactions.
examples:
Combustion
Cellular respiration
etc.
300
Whats the substance used to power active transport?
Adenosine triphosphate (ATP)
300
Write a hypothesis for the question: How does the angle of a ramp affect the speed of a rolling object?
If the angle of the ramp increases, then the speed of the rolling object will increase because it has more GPE
400
What is the unit of power?
Wat is Watt?
400
Balance this equation: C4H9OH + O2 → CO2 + H2O
C4H9OH + 6O2 → 4CO2 + 5H2O
400
This is the term for the change in the shape of an enzyme that occurs when it is exposed to high temperatures or extreme pH levels.
What is denaturation?
400
What steps should you take if your data contains an outlier?
Recheck the measurement, ensure there were no errors, and decide whether to exclude it or explain its impact in your analysis.
500
A 10 kg object is lifted 5 m in the air. Calculate gain in the gravitational potential energy.
PE = mgh
490J
500
If 100 g of water is heated, and the temperature increases by 5°C, how much heat is required?
What is 2,090 J?
500
In osmosis, if a cell is placed in a solution with a higher concentration of solute outside, the cell will lose water. This type of solution is called:
What is a hypertonic solution?
500
What materials do you need to measure enthalpy?
Thermometer
Scale/balance
Calorimeter?