What this topic covers
Mechanics and materials has 2 subtopics:
- Force, energy and momentum
- Materials
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AS Level AQA Physics · Topic 4 of 5
Mechanics and materials – AS Level AQA Physics revision notes
Choose a subtopic. Mechanics and materials covers Force, energy and momentum and Materials in AS Level AQA Physics. 14 lessons in 2 subtopics.
Revise Mechanics and materials for AS Level AQA Physics, including Force, energy and momentum and Materials. 14 lessons across 2 subtopics.
14
Lessons
2
Subtopics
Mechanics and materials lessons by subtopic
14 lessons, grouped by subtopic.
Force, energy and momentum
- Work Done and Energy Transfer
- Power and Efficiency
- Calculating Projectile Motion
- Friction, Lift, and Drag Forces
- Terminal Speed and Air Resistance
- Newton's Laws of Motion
- F=ma and Constant Mass
- Moments and Couples
Materials
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Frequently asked questions
What is Mechanics and materials?
Mechanics and materials covers Force, energy and momentum and Materials in AS Level AQA Physics. 14 lessons in 2 subtopics.
What is the formula for work done?
Work done is W = Fs cos θ, where F is the applied force in newtons, s is the displacement in metres and θ is the angle between the force and the direction of displacement. The Work Done and Energy Transfer notes cover this in full.
What is the unit of density?
The SI unit of density is kg m⁻³, because density is mass per unit volume, ρ = m/V, with mass in kilograms and volume in cubic metres. The Density, Hooke's Law and Elasticity notes cover this in full.
What is inertia?
Inertia is the property that causes objects to resist changes in their motion. The Newton's Laws of Motion notes cover this in full.
What is friction?
Friction is a contact force between two surfaces in contact, acting parallel to the surfaces and opposing their relative motion or tendency of motion. The Friction, Lift, and Drag Forces notes cover this in full.
What is terminal velocity?
Terminal speed is the constant speed reached when the drag force on a moving object equals the driving force, such as weight for a falling object, giving a resultant force of zero and therefore zero acceleration. The Terminal Speed and Air Resistance notes cover this in full.
How do you calculate density?
Density is mass per unit volume, ρ = m/V, in kg m⁻³. The Density, Hooke's Law and Elasticity notes cover this in full.
What is the equation for power?
Power is the rate of doing work, or the rate of energy transfer: P = ΔW/Δt, where ΔW is the work done in joules and Δt is the time interval in seconds. The Power and Efficiency notes cover this in full.
What is the principle of moments?
The principle of moments states that for a body in equilibrium, the sum of clockwise moments equals the sum of anticlockwise moments. The Moments and Couples notes cover this in full.