Year 7 level science. Focus and pressure

Froggy Jumps

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Science

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Olivia

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Year 7 level science. Focus and pressure

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Year 7 level science. Focus and pressure


Froggy Jumps Year 7 level science. Focus and pressureVersion en ligne Science par Olivia 1 What is Hookes law state? a Strings break when stetched b The extension of a spring is proportional to the Forse applied c Springs get smaller when stretched 2 What happens to a spring when a force is applied? a It snaps b It changes colour c It stretches or compresses 3 What us ment by extension? a The total length of a spring b The increase in length of a spring c The force of a spring 4 A spring stretches 4cm with 2N. How much would it syetch with 4N? a 8cm b 6cm c 4cm 5 What does it mean if a spring has reached its elastic limit? a It returned to its original length b It becomes stronger c It won't return to its original length 6 Why might a spring NOT return to its original length? a Too little force was applied b It exceeded its elastic limit c It was too weak 7 What is pressure? a Force x Area b Force ÷ Area c Area ÷ Force 8 Which creates more pressure? a Standing on two feet b Standing on one foot c Laying down 9 Why do sharp knifes cut better that blunt one's? a They are heavier b They have a smaller surface area c They move faster 10 What happens to pressure when surface area decreases? (Forces stay the same) a Pressure decreases b Pressure stays the same c Pressure increases 11 Why do camels have wide feet? a To run faster b To increase pressure c To reduce pressure on sand 12 A brick is placed flat on the ground, and then on its side. When does it exert more pressure? a When it's flat b On its side c Both the same 13 What happens to pressure in a liquid as depth increases? a It decreases b It stays the smae c It increases 14 Why do divers experience more pressure deeper underwater? a Water gets colder b Where is more water above them c They move faster 15 Where is pressure greatest ina swimming pool? a Everywhere is the same b The top of the water c The bottom of the pool 16 Why are dams thicker at the bottom? a To save money b To look stonger c Pressure is greater with depth 17 What causes pressure in liquids? a Heat b Light c Weight of the liquid 18 If two holes are made in a water bottle. On at the top and one at the bottom. Which would shoot water the further? a Top hole b Bottom hole c Both the same 19 What causes pressure in gass? a Gas temperature b Gas particles colliding with surfaces c Gravity 20 What happens to gas pressure when particles move faster? a Pressure decreases b Pressure stays the same c Pressure Increases 21 Why does a balloon expand when blown up? a Air cools down b Air particles hit the sides c The rubber shrinks 22 Why do ears "pop" on a plane? a The plane is noisy b Air pressure changes c Temperature changes 23 What happens to gas pressure if bolume decreases? a Pressure decreases b Pressure increases c Pressure stays the same 24 Why do snowshoes stop you from sinking into the snow? a They are heavier b They increase pressure c They increase surface area 25 Which is an example of pressure being useful? a Wind blowinv b A sharp pencil writing c The sun shining 26 Why can high-heeled damage floors? a They are sharp b They are heavy c They create high pressure

Year 7 level science. Focus and pressure

Froggy Jumps

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Year 7 level science. Focus and pressureVersion en ligne

par Olivia

What is Hookes law state?

What happens to a spring when a force is applied?

What us ment by extension?

A spring stretches 4cm with 2N. How much would it syetch with 4N?

What does it mean if a spring has reached its elastic limit?

Why might a spring NOT return to its original length?

What is pressure?

Which creates more pressure?

Why do sharp knifes cut better that blunt one's?

What happens to pressure when surface area decreases? (Forces stay the same)

Why do camels have wide feet?

A brick is placed flat on the ground, and then on its side. When does it exert more pressure?

What happens to pressure in a liquid as depth increases?

Why do divers experience more pressure deeper underwater?

Where is pressure greatest ina swimming pool?

Why are dams thicker at the bottom?

What causes pressure in liquids?

If two holes are made in a water bottle. On at the top and one at the bottom. Which would shoot water the further?

What causes pressure in gass?

What happens to gas pressure when particles move faster?

Why does a balloon expand when blown up?

Why do ears "pop" on a plane?

What happens to gas pressure if bolume decreases?

Why do snowshoes stop you from sinking into the snow?

Which is an example of pressure being useful?

Why can high-heeled damage floors?