P2.2.3 Force and Acceleration + P2.2.4 On the Road 0.0 / 5 ? PhysicsMotionGCSEAQA Created by: MaddiCreated on: 04-05-14 18:05 How does the acceleration of an object depend on the size of the resultant force? The bigger the resultant force on an object is, the greater its acceleration is. 1 of 9 What effect does the mass of the object have on its acceleration? The greater the mass of an object is, the smaller its acceleration is for a given force. 2 of 9 How do we calculate the resultant force on an object from its acceleration and its mass? Resultant force (N) = mass (kg) x acceleration (m/s) 3 of 9 What happens to the acceleration of an object as the resultant force on it decreases? Acceleration decreases. 4 of 9 What forces oppose the driving force of a car? Friction and air resistance oppose the driving force of a car. 5 of 9 What does the stopping distance of a car depend on? The stopping distance of a car depends on the thinking and braking distance. 6 of 9 How can you calculate the stopping distance of a car? Stopping distance = thinking distance + braking distance 7 of 9 What factors can increase the braking distance of a vehicle? High speed, poor weather conditions and poor maintance all increase the braking distance. 8 of 9 What factors can increase the thinking distance of a vehicle? Poor reaction time and high speed both increase the thinking distance. 9 of 9
Comments
No comments have yet been made