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AS Unit 2 Applied Mathematics A

6 dot points across 6 inquiry questions. Click any dot point for a focused answer with worked past exam questions where available.

How do Newton's laws relate force to acceleration, and how do we handle weight, tension, friction and connected particles?

Newton's three laws, force diagrams, weight, normal reaction, tension, friction, and connected particles over a pulley.
A focused answer to WJEC AS Unit 2 forces, covering Newton's three laws, force diagrams, weight, normal reaction, tension, friction, and the motion of connected particles over a pulley.
13 min answer →

How do we describe motion in a straight line using graphs and the equations of constant acceleration?

Quantities and units in mechanics, displacement, velocity and acceleration, motion graphs, and the constant-acceleration (suvat) equations including vertical motion under gravity.
A focused answer to WJEC AS Unit 2 kinematics, covering quantities and units in mechanics, displacement, velocity and acceleration, motion graphs, and the constant-acceleration suvat equations including vertical motion under gravity.
12 min answer →

How do we calculate probabilities for combined events using Venn diagrams and the addition and multiplication rules?

Probability of events, Venn diagrams and set notation, the addition rule, mutually exclusive and independent events, and tree diagrams.
A focused answer to WJEC AS Unit 2 probability, covering the probability of events, Venn diagrams and set notation, the addition rule, mutually exclusive and independent events, and using tree diagrams.
12 min answer →

How do we model the number of successes in a fixed number of trials, and what is the binomial distribution?

Discrete random variables and probability distributions, the binomial distribution and its conditions, and calculating binomial probabilities.
A focused answer to WJEC AS Unit 2 statistical distributions, covering discrete random variables and probability distributions, the conditions for a binomial distribution, and calculating binomial probabilities including cumulative cases.
12 min answer →

How do we test a claim about a probability using a sample and the binomial distribution?

Null and alternative hypotheses, one-tailed and two-tailed tests, the significance level, critical regions, and the binomial hypothesis test.
A focused answer to WJEC AS Unit 2 hypothesis testing, covering null and alternative hypotheses, one-tailed and two-tailed tests, significance levels and critical regions, and carrying out a binomial hypothesis test.
13 min answer →

How do we sample a population fairly, and how do we present and interpret the data we collect?

Populations and samples, random and non-random sampling methods, and presenting and interpreting data with measures of location, spread, histograms and box plots.
A focused answer to WJEC AS Unit 2 statistics, covering populations and samples, random and non-random sampling methods, measures of location and spread, and presenting data with histograms and box plots.
12 min answer →