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Grade 6 · Science · Unit 5 of 12

Flight

Lift, weight, thrust and drag

What your child practises

The four forces of flight and how balanced and unbalanced forces change motion, how air makes flight possible, how birds, bats and insects fly, and the impacts of aviation.

Nunavut Curriculum approved guide: NWT Science and Technology K–6 (2004), Earth and space science · lift and other forces that oppose gravity

Sample questions

A taste of this unit. In the app, questions change every time and get easier or harder to match your child.

  1. Question 1

    A parachute slows a falling person by increasing…

    • thrust
    • drag
    • lift

  2. Question 2

    Which property of air do wings use to create lift?

    • Air has no mass
    • Air cannot move
    • Faster air above the wing means lower pressure above than below

  3. Question 3

    Which are the four forces of flight?

    • Lift, mass, speed and wind
    • Lift, weight, thrust and drag
    • Thrust, gravity, wind and rain

  4. Question 4

    A glider has no engine. Which force is missing?

    • Lift
    • Weight
    • Thrust

  5. Question 5

    Which pair are the forces that must be balanced for a plane to stay at a steady height?

    • Lift and weight
    • Thrust and weight
    • Lift and drag

  6. Question 6

    A bird tilts its tail feathers to turn. This is similar to a plane using…

    • its landing gear
    • its fuel tank
    • its rudder or other control surfaces

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