Criado por Tia Lander
mais de 7 anos atrás
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Questão | Responda |
What is linear motion? | Movement where all parts of an object travel the same distance in the same direction at the same time |
What is a scalar quantity? | Something that is only considered in terms of size or magnitude |
What is a vector quantity? | Something considered in terms of both magnitude and direction |
Give 3 examples of scalar quantities | 1. Speed 2. Distance 3. Mass |
Give 6 examples of vector quantities | 1. Velocity 2. Acceleration 3. Weight 4. Momentum 5. Displacement 6. Impulse |
Define speed and how it is calculated | A body's movement per unit of time. Distance ➗time = speed (m/s) |
Define velocity and how it calculated | The speed of a body in a given direction Displacement ➗ time = velocity (m/s) |
Define acceleration and how it is calculated | The rate of change in velocity Velocity ➗ time = acceleration (m/s^2) |
Define mass | The quantity of matter that a body possesses (Kg) |
Define weight and how it is calculated | The force of gravity exerted on the mass of a body Mass ✖️ gravity = weight (newtons) |
Define distance and how it is calculated | The measure of a path travelled by an object Speed ✖️ time = distance (m) |
Define displacement | The shortest possible route from A to B in s straight line |
Define momentum and how it is calculated | The amount of motion a body possesses Mass ✖️velocity = momentum (Kgms) |
Define impulse and how it is calculated | The length of time a force is applied to an object, relating to a change in momentum Force ✖️time |
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