Physics topic 1

• What is the difference between speed and velocity Speed is a scalar quantity as it only has a magnitude Velocity is a vector quantity as it has both a magnitude and a direction
• What is the difference between distance and displacement Distance is a scalar quantity as it only has magnitude Displacement is the shortest distance between the start and the end points
• What is the formula for velocity Velocity = displacement / time
• What's the speed of sound in air 330 m/s
• What is the approximate speed of walking 1.5 m/s
• What is the approximate speed of running 3 m/s
• What's the approximate speed of cycling 6 m/s
• What's the approximate speed of a car 25 m/s
• What's the approximate speed of a train 55 m/s
• What's the approximate speed of an aeroplane 250 m/s
• Define a scalar quantity Scalar quantity only has a magnitude and does not have a direction
• Define a vector quantity Vector quantities have both direction and magnitude
• Is speed a scalar or vector quantity Scalar
• Is velocity a scalar or a vector Vector
• Is temperature a scalar or a vector Scalar
• Is distance a scalar or a vector Scalar
• Is displacement a scalar or a vector Vector
• Is weight a scalar or a vector Vector
• Is mass a scalar or a vector Scalar
• Define acceleration Acceleration is the rate of change in velocity
• What do we call negative acceleration Deceleration
• In terms of velocity, what do we the letters u and v mean U is initially velocity V is final velocity
• What is the formula that links acceleration, velocity, and time Acceleration = change in velocity / time
• What is the formula that links acceleration, inital velocity, final velocity, and displacement v² - u² = 2as
• What does a distance time graph show How the distance travelled by an object changes over time
• What is on the y-axis and x-axis of a distance time graph Distance is on the y-axis Time is on the x-axis
• How do you fond the speed of an object from a distance-time graph Find the gradient of the line at a particular point
• What does a velocity time graph show How the velocity of an object changes over time
• What is on the y-axis and x-axis of a velocity time graph Velocity is on the y-axis Time is on the x-axis
• How do you find the exact acceleration of an object form a velocity time graph Find the gradient of the line at a particular point
• How do you find the total distance travelled by an object from a velocity time graph Find the area under the curve
• What is a force A force is a push or pull that acts upon an object as a result of that's object's interactions with its surroundings
• Is force a scalar or vector quantity and explain why Force has both magnitude and direction which makes it a vector quantity
• What is a contact force A contact force is any force that occurs as a result of two objects making physical contact with each other
• What's a non-contact force A non-contact force is a force that acts on an object without cooimg into physical contact with it
• Is tension a contact or a non contact force Tension is a contact force
• Is friction a contact or a non-contact force Friction is a contact force
• Is weight a contact or non-contact force Weight is a non-contact force
• Is normal contact force a contact or non-contact force Normal contact force is a contact force
• Is electromagnetism a contact or non-contact force Electromagnetism is a non-contact force