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Friction Air Resistance and Drag — Free MYP1 Sciences Practice Questions
1QuestionAdvantages and Disadvantages of FrictionConcept Practice
2 marks~3 minCriterion A
A child pushes a heavy box across a carpet and then across a smooth floor.
a
Identify which surface creates more friction. [1]
b
Describe why the box is harder to push on a rough surface than on a smooth surface. [1]
Solutions
2QuestionReducing Friction in MachinesAssessment Practice
5 marks~8 minCriterion C
A student drags a 2 kg block across four surfaces using a spring scale. The pulling force needed to keep the block moving at a steady speed is shown below.
| Surface | Pulling force (N): |
|---|---|
| Smooth wood | 4 |
| Sandpaper | 10 |
| Oiled metal | 2 |
| Metal with ball bearings | 1.5 |
a
Identify the surface with the lowest friction force. [1]
b
Describe what the pulling force tells you about the friction force when the block moves at a steady speed. [2]
c
A student claims: "Ball bearings always reduce friction more than oil." Compare the results for oiled metal and metal with ball bearings, and explain whether the data fully supports this claim. [2]
Solutions
3QuestionAdvantages and Disadvantages of FrictionConcept Practice
3 marks~5 minCriterion A
The diagram shows a person rubbing their hands together to warm them up.
a
Identify the type of force acting between the hands when they are rubbed together. [1]
b
Describe how rubbing your hands together produces heat. [1]
c
Give one example of a situation where friction between two surfaces is useful, and one example where it is a problem. [1]
Solutions
4QuestionAdvantages and Disadvantages of FrictionConcept Practice
2 marks~3 minCriterion B
A toy car is rolled across three surfaces: carpet, tile floor, and sandpaper. The distance the car travels on each surface is measured.
a
Identify the independent variable in this investigation. [1]
b
Identify the dependent variable in this investigation. [1]
Solutions
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