What's covered
Forces12
Hooke's Law10
Pressure in fluids10
Speed, distance and time10
Sample questions
A taste of the 42 questions in this topic — answers marked. Sign up to practise the full set with spaced repetition.
1Forces
What is a force?
- ✓A push or pull on an object
- •A type of energy store
- •Speed of an object
- •The mass of an object
2Hooke's Law
What is the equation for Hooke's Law?
- •F = k/e
- ✓F = ke
- •F = ke²
- •F = ma
3Pressure in fluids
What is the equation for pressure?
- •P = A/F
- •P = F × A
- ✓P = F/A
- •P = F/d
4Speed, distance and time
What is the equation for speed?
- ✓speed = distance ÷ time
- •speed = distance × time
- •speed = force ÷ mass
- •speed = time ÷ distance
5Forces
Which is a contact force?
- •Electric force
- ✓Friction force
- •Gravity force
- •Magnetic force
6Hooke's Law
What does Hooke's Law state?
- •Extension is constant for any force
- ✓Extension is proportional to force
- •Force decreases as you stretch a spring
- •Springs always return to original length
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