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5A Forces II
Quiz by Gideon Williams
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11 questions
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- Q1For work to be done..Energy must be transferred from one form to anotherA force must be involvedAn object must move a distance with a force acting on itThere is a change in direction of the force30s
- Q2The formula for Word done isN x mF x sW x sF x d30s
- Q3Tony lifts a can of beams weighing 2kg to a shelf 50cm high. What work does he do?10J1J100J1000J30s
- Q4Who is doing work?Martin holds up his Albert Hein shopping in 2 bagsJill stops a car rolling down a slopeSally stands at the top of the stairsBob pushes a wheelbarrow into his garden30s
- Q5A spring returns to its original length when stretchedPlastic deformationElastic deformationInelastic deformationSpring constant30s
- Q6Units of the spring constant?N/mNmN/cmN30s
- Q7A spring is 25cm long. A 10N weight is added to it and it stretches to 35cm. If the elastic limit is not met, what is the spring constant?100N/cm1N/cm10N/cm100N/m30s
- Q8A spring is 25cm long. It stretches to 45cm. If the spring constant is 20N/m, how much elastic potential energy has it stored?4J400J0.4J40J60s
- Q9An experiment is set up to measure how much a spring stretches. Weights are added to the spring and the extension measured. What is the independent variable?Distance stretched toForceExtensionLength of spring30s
- Q10An experiment is set up to measure how much a spring stretches. Weights are added to the spring and the extension measured. What is the dependent variable?Force addedExtensionOriginal lengthMaterial spring is made of30s
- Q11An experiment is set up to measure how much a spring stretches. Weights are added to the spring and the extension measured. Name one control variableHeight of springForce addedLength of springThe type of spring30s