1
Q
What is friction
A
Friction is a force that always acts in the opposite direction to movement
2
Q
What is the advantages for friction
A
It allows things to start and stop
3
Q
What disadvantages of friction
A
It slows you down
- friction wastes energy
- friction limits your speed. The air resistance takes a lot of your energy and limits your maximum speed
Science
flashcards
Decks in class (70)
# Cards
-
Generating electricity14
-
The cost of electricity14
-
Comparing power ratings and energy values7
-
electrical circuits18
-
series circuit3
-
Parallel circuits4
-
Measuring current and potential difference8
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Static electricity11
-
magnets8
-
Electromagnets9
-
Displacement reactions20
-
Plant nutrition17
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Plant reproduction14
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Fertilisation, seed formation and distribution16
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Investigating seed dispersal mechanisms5
-
Dependence on other organisms8
-
Food chains6
-
Food webs5
-
The skeletal system8
-
The muscular system7
-
Force applied by Muscles6
-
Gas exhange10
-
Breathing8
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Exercise, Asthma and smoking9
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Human reproductive system8
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Having a baby2
-
The menstrual cycle4
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Health and pregnancy4
-
Drugs8
-
Water waves9
-
Light waves8
-
Reflection7
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Refraction5
-
How we see10
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colour5
-
Sound9
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Hearing5
-
Energy and waves5
-
The Earth's structure3
-
Rock types7
-
The Rock cycle2
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Recycling3
-
The carbon cycle1
-
The atmosphere and the climate5
-
Speed5
-
Distance time graphs8
-
Relative motion3
-
Forces and movement5
-
Friction3
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Air and Water Resistance3
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Force diagrams4
-
Moments5
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Forces and Elasticity5
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Pressure8
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The microscope2
-
cells5
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cell organisation5
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respiration5
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Solid, Liquids and Gas3
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Particle theory3
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More particle theory6
-
Atoms and elements5
-
periodic table6
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compounds7
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Naming compounds2
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Mixtures7
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Separating mixtures9
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Properties of metals10
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Properties of non-metals8
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Properties of other materials4
