Air resistance: plan | Science | Quizalize & Oak National Academy

Starter quiz

Pushes and pulls are …
- 'forces' ✓
What is the type of force that acts between two surfaces trying to move across each other?
- magnetism
- friction ✓
- twists
- gravity
What does friction do to moving objects?
- speeds them up
- nothing
- slows them down ✓
Name the force which pulls unsupported objects towards the centre of Earth.
- 'gravity' ✓
In which of these situations is friction useful?
- Going as fast as possible down a slide.
- Rubbing your hands together to warm them. ✓
- The moving parts in engines heating up.
Friction works in the ______ direction to the movement.
- 'opposite' ✓

Name for the force caused by air moving against the surface of an object.
- 'air resistance' ✓
Objects with greater air resistance will fall more ______ than objects with less air resistance.
- 'slowly' ✓
Which of these statements are true about how you should treat variables in a fair test investigation?
- you should only ever change one ✓
- you should only ever control one
- you should control all but one ✓
Match the word to the example. Is air resistance helpful or unhelpful in these situations?
- Unhelpful
  
  ⇔
  
  An athlete running as fast a possible. ✓
- Helpful
  
  ⇔
  
  A parachutist controlling their descent. ✓
- Unhelpful
  
  ⇔
  
  A racing car trying to cross the finish line first. ✓
How does a parachute work?
- air pushes up against the canopy ✓
- air pushes down on the canopy
- air pushes the canopy sideways
In which direction does air resistance act?
- the same direction as the movement
- across the direction of the movement
- the opposite direction to the movement ✓

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Air resistance is a force caused by air moving against the surface of an object
Air resistance is a force that acts in the opposite direction to a moving object
Air resistance can be helpful and unhelpful in different real-life situations
Scientists control variables when planning fair tests to investigate air resistance

All objects experience the same amount of air resistance, regardless of their size or shape.

Discussion and practical exploration will address this misconception.

Force - A force is a push or a pull. Forces can make objects change speed, change direction or change shape.
Air resistance - Air resistance is a type of friction force which acts between the air and the surface of an object.
Friction - Friction is a type of force that acts between surfaces.
Fair test investigation - A fair test is where only one thing is changed to see what effect that has on the results of the investigation.
Variables - Variables are things which can be changed in an investigation.