Physics

• What is motion?

  It is the act of changing location through time.
• what is an unbalanced force?

  Forces that are not equal and opposite
• what are three things that describe the motion of an object?

  1.) position 2.) speed 3.) distance
• what are the quantities of motoin?

  distance, time and mass
• what is the difference between distance and displacement?

  distance is the length traveled between two points while displacement is the straight line distance between two places.
• is distance a vector or scalar?

  Distance is a scalar because it has no direction
• is displacement a vector or scalar?

  Displacement is a vector because it has direction.
• what is the difference between vectors and scalars?

  Vectors have direction and size, scalars have direction but not size.
• what is speed?

  speed is how fast a moving object is travelling
• Is speed a vector or scalar?

  Speed is a scalar quality
• what is velocity?

  it is the rate of which displacement changes. meaning speed in a particular direction. it is a measure of how quickly displacement changes with time.
• is velocity a vector or scalar?

  Velocity is a vector quality
• how do you calculate distance?

  speed x time
• how do you calculate speed?

  Distance ÷ time
• how do you calculate time?

  distance ÷ speed
• how do you calculate velocity?

  displacement ÷ time
• how do you convert km/h and m/s?

  km/h divided by 3.6 equals m/s

  m/s times 3.6 quals km/h
• what axis on a distance time graph is time?

  x-axis
• what axis on a distance time graph is distance?

  y-axis
• what does the line on a distance-time graph indicate?

  the speed of the object
• what is uniformed motion?

  uniform motion is defined as an qual distance being covered in the same time periods (can be referred ato as constant speed). straight lines on distance-time graphs mean uniform motion
• slope is related to speed, steep sloper is higher speed and shallow slope is less speed.
• what is acceleration?

  it is the change of speed or velocity through time. it is worked out by using the gradient of a slope on a velocity-time graph.