Water resistance: do and review | Science | Quizalize & Oak National Academy

Starter quiz

Match the force created, to the example:

water resistance

⇔

submarine moving through the sea ✓

air resistance

⇔

helicopter flying ✓

friction

⇔

car tyres on a road ✓
The ______ the surface area of a moving object, the greater the air resistance.

'greater' ✓
Air resistance and water resistance are both types of friction that act in the ______ direction to the direction of movement.

'opposite' ✓
On which part of moving objects does water resistance act?

the inside

the top and bottom

the surface ✓
Which of these would you find in a conclusion?

an explanation of the results ✓

a table of results

a line graph

an answer to the enquiry question ✓
Why do runners sometimes use parachutes in training?

To decrease air resistance so they have to work harder.

To increase air resistance to stop them slipping.

To decrease air resistance to help them run faster.

To increase air resistance so they have to work harder. ✓

Which of this equipment would not help you measure time?

clock

scales ✓

sand timer

stopwatch
Which of these are non-contact forces?

friction

gravity ✓

water resistance

air resistance

magnetism ✓
If the results of an investigation are reliable, it means you can ...

measure them

trust them ✓

draw them
Scientists take repeat measurements to ...

see if the results can vary ✓

make more complex graphs

check their results are reliable ✓
In the ______ of an investigation, scientists judge how reliable the conclusion is. This can include an explanation of, and degree of trust in, the results.

'evaluation' ✓
Match the size of the surface area to its effect on a moving object.

Larger surface area

⇔

Increase water resistance ✓

Smaller surface area

⇔

Decrease water resistance ✓

Larger surface area

⇔

Increase air resistance ✓

Smaller surface area

⇔

Decrease air resistance ✓

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Scientists take, repeat and compare measurements using a range of scientific equipment.
The evaluation of an investigation can include an explanation of, and degree of trust in, the results.
Greater surface area on a moving object can increase water resistance.

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

Discussion and explicit teaching. The investigation they carry out will show them that this is not true.

Water resistance - Water resistance is a type of friction force which acts between water and the surface of an object.
Trust - How reliable we think the results of an investigation are.
Reliable - If a result is reliable, it measures something consistently.
Evaluation - In the evaluation of an investigation, scientists judge how reliable the results and conclusion are.