P5- Forces 0.0 / 5 ? PhysicsForcesGCSEAQA Created by: BootsyCreated on: 27-03-18 15:58 What is a non-contact force? Whe two objects do not need to be touching for the force to act 1 of 18 What is a contact force? When two objects have to be touching for a force to act 2 of 18 What is gravitational force? The force of attraction between masses 3 of 18 Gravity has 2 important effects. What are they? It make all things fall to the ground. It gives everything a weight 4 of 18 Define Mass The amount of 'something' in an object 5 of 18 Define weight The force acting on an object due to gravity 6 of 18 The closer you are to the mass causing the gravitational field strength the _____ it is Stronger 7 of 18 What does the weight of an object depend on? The strength of the gravitational field at the bottom of the object 8 of 18 Weight is meaured in Newtons 9 of 18 Mass and Weight are Directly proportional 10 of 18 How do you calculate the Weight of an object Weight= Mass X Gravitational Field Strength 11 of 18 The sizes of the arrows on a body diagram show the... relative magnitudes of the forces 12 of 18 The directions of the arrows on a body diagram show... directions of the forces acting on the object 13 of 18 What is a resultant force? The overall force on a point or object 14 of 18 If all the forces act along the same line the overall effect is found by... adding those going in the same direction and subtracting any going in the opposite direction 15 of 18 When something moves a force has to be applied onto it. What does the force do to move the object? Work which makes energy transfer from one store to another 16 of 18 How do you find out how much work has been done? Work = Force X Distance 17 of 18 How many newtons are in 1 joule 1J = 1Nm 18 of 18
Comments
No comments have yet been made