C06 Matter and Materials

What’s on the Specification

P3.3

Force and extension:

Interpret force–extension graphs.
Understand elastic and inelastic extension, and elastic limits.
Know and be able to apply Hooke’s law ($\mathrm{F = kx}$) and understand the meaning of the limit of proportionality.
Understand energy stored in a stretched spring as: $\mathrm{E = \frac{1}{2}Fx = \frac{1}{2}kx^{2}}$

P5.4

Density:

Know and be able to apply: $\mathrm{density = \frac{mass}{volume}}$, $\mathrm{\rho = \frac{m}{v}}$
Understand the experimental determination of densities.
Be able to compare the densities of solids, liquids and gases.

P5.5

Pressure:

Know and be able to apply: $\mathrm{Pressure = \frac{Force}{Area}}$
Know and be able to apply: $\mathrm{hydrostatic\ pressure = hpg}$, where $\mathrm{h}$ is the height, or depth, of the liquid.

Learning Objectives

Be able to calculate density of solid and liquid
Understand pressure in the context of solid and liquid
Be proficient in using Hooke’s law to solve springs in parallel and in series, as well as to determine elastic potential energy in springs
Be familiar with the definition of Young’s modulus along with terms stress and strain

Suggested Time

Task	No. of Questions	Suggested Time
Examples	11	90 min
Quiz	10	20 min
Practice A	35	70 min
Practice B	35	80 min
Total	91	approx. 5-6 hrs

Practice:

P06A Matter and Materials: Foundation

Practice:

P06B Matter and Materials: Challenge

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