Year 8 - Unit 5 Word Scramble
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| Question | Answer |
| What is a Force? | A Force is a push or pull. |
| What does the term 'balanced forces' mean? | The net force equals zero. Therefore the objects motion is not affected. |
| What does the term 'unbalanced forces' mean? | The net force is not zero. Therefore the objects will accelerate (or decelerate). |
| Which of the following forces are 'contact forces'? Friction, Weight, Air Resistance, Magnetism, Applied force (push), Electrical , Spring force, Tension , Upthrust/Trust | The contact forces are: Friction, Tension (Pull), Air Resistance , Applied Force (Push) , Spring Force (Twist), Upthrust/Thrust |
| What are the three effects forces can have on an object? | Squash, Stretch and Move |
| What is the resultant force? 15N <--- O -> 5N | 10N to the left |
| What is the resultant force? 150N <--- O -> 50N | 100N to the left |
| What is the resultant force? 25N <- O ----> 100N | 75N to the right |
| What is the resultant force? 30N <-- O ----> 80N | 50N to the right |
| What happens if an object is stretched too far? | It deforms inelestically (it breaks and can no longer return to it's original shape) |
| Weight = _________ x __________? | Weight = mass x gravitational field strength |
| What is the SI unit for Force? | Newtons, N |
| What is weight? | Weight is a force due to gravity. |
| What is mass? | Mass is the amount of matter ('stuff') which an object is made up from. |
Created by:
nashl
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