Work and Power 0.0 / 5 ? PhysicsWork and PowerGCSEEdexcel Created by: RinkyPereraCreated on: 17-04-17 12:06 How is work done? Whenever a force moves something. Energy is transferred from one place to another 1 of 27 Work done=? Force x Distance 2 of 27 What is work measured in? Joules (J) 3 of 27 What is forced measured in? Neutons (N) 4 of 27 What is distance measured in? Metres (m) 5 of 27 What is work done equal to? Energy transferred 6 of 27 What is gravitational potential energy (GPE)? When we have potential (stored) energy when we are above the Earth's surface 7 of 27 What does the amount of GPE depend on? Its mass and its height above the ground 8 of 27 GPE=? m x g x h 9 of 27 What is GPE measured in? Joules (J) 10 of 27 What is the mass measured in? Kilograms (kg) 11 of 27 What is the gravitational field strength measured in? Neutons? (N/kg) 12 of 27 What is the height measured in? Metres (m) 13 of 27 What kind of energy do all moving objects have? Kinetic energy 14 of 27 What does the kinetic energy the object has depend on? Its mass and its speed 15 of 27 Kinetic energy=? 1/2 x m x v^2 16 of 27 What is the Kinetic energy measured in? Joules (J) 17 of 27 What is the mass measured in? Kilograms (kg) 18 of 27 What is the velocity measured in? Metres per second (m/s) 19 of 27 What is work done and energy both measured in? Joules (J) 20 of 27 Why are they equal? Because work done is equal to energy transferred 21 of 27 What is power a measure of? How quickly work is being done and so how quickly energy is being transferred 22 of 27 Power=? Work done/time 23 of 27 What is power measured in? Watts (W) 24 of 27 What is work done measured in? Joules (J) 25 of 27 What is time measured in? Seconds (s) 26 of 27 True or False: More powerful engines in cars can do work quicker than less powerful ones True 27 of 27
Comments
No comments have yet been made