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Air resistance and water resistance

5th grade (Year 6 in England) · 16 questions · Common Core: NGSS.MS-PS2-2 · England: KS2 Y5 Forces

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Score/ 16

1
Question 1
Air and water resistance: which statement is NOT true?
- A. A parachute with a bigger area falls more slowly.
- B. Air resistance acts against the direction of motion.
- C. Water resistance only acts on boats.
- D. Streamlined shapes reduce air and water resistance.
2
Question 2
Which falls slowest: a flat sheet of paper or the same paper screwed into a ball?
- A. they always land together
- B. the ball of paper
- C. the flat sheet
- D. neither falls
3
Question 3
Which is the best shape for a fast racing car?
- A. low and streamlined
- B. flat and wide like a sheet
- C. covered in flags
- D. tall and square
4
Question 4
Air and water resistance: which statement is NOT true?
- A. Air resistance acts against the direction of motion.
- B. Streamlined shapes reduce air and water resistance.
- C. Air resistance is a type of friction.
- D. Water resistance only acts on boats.
5
Question 5
Cyclists crouch low over their handlebars in races. Why?
- A. to make the bike heavier
- B. to reduce air resistance
- C. to increase friction with the road
- D. to see the road better
6
Question 6
Which is the best shape for a fast racing car?
- A. flat and wide like a sheet
- B. tall and square
- C. covered in flags
- D. low and streamlined
7
Question 7
Air and water resistance: which statement is NOT true?
- A. Air resistance acts against the direction of motion.
- B. Air resistance is a type of friction.
- C. Water resistance only acts on boats.
- D. Streamlined shapes reduce air and water resistance.
8
Question 8
Why are fish and boats streamlined (smooth and pointed)?
- A. to float higher
- B. to increase water resistance
- C. to reduce water resistance
- D. to look nice
9
Question 9
Why does air resistance increase as a cyclist goes faster?
- A. Gravity gets stronger
- B. The air gets heavier
- C. The cyclist hits more air particles each second
- D. The bike gets bigger
10
Question 10
Air and water resistance: which statement is NOT true?
- A. Air resistance acts against the direction of motion.
- B. Air resistance pulls falling objects downwards.
- C. Streamlined shapes reduce air and water resistance.
- D. A parachute with a bigger area falls more slowly.
11
Question 11
Why does a parachute slow a skydiver down?
- A. It is full of helium
- B. It makes the skydiver lighter
- C. Its large surface creates a lot of air resistance
- D. It turns off gravity
12
Question 12
Which is the best shape for a fast racing car?
- A. tall and square
- B. covered in flags
- C. low and streamlined
- D. flat and wide like a sheet
13
Question 13
Air and water resistance: which statement is NOT true?
- A. Air resistance is a type of friction.
- B. A parachute with a bigger area falls more slowly.
- C. Streamlined shapes reduce air and water resistance.
- D. Air resistance pulls falling objects downwards.
14
Question 14
Why are fish and boats streamlined (smooth and pointed)?
- A. to float higher
- B. to reduce water resistance
- C. to look nice
- D. to increase water resistance
15
Question 15
Which is the best shape for a fast racing car?
- A. low and streamlined
- B. tall and square
- C. covered in flags
- D. flat and wide like a sheet
16
Question 16
Air and water resistance: which statement is NOT true?
- A. Air resistance is a type of friction.
- B. Streamlined shapes reduce air and water resistance.
- C. Air resistance acts against the direction of motion.
- D. Air resistance gets smaller as you go faster.

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