Steady Speed Flashcards
What is the definition of steady speed?
- object at constant speed
- no acceleration or deceleration
True or False: A car moving at different speeds is an example of steady speed.
False
What is the formula for speed?
Speed (v) = distance (s) ÷ time (t)
What does a speed-time graph look like for an object moving at steady speed?
A horizontal line
Fill in the blank: When an object is moving at a steady speed, its _____ remains constant.
velocity
What is the SI (Standard International) unit for speed?
Meters per second (m/s)
True or False: Steady speed can be calculated only for straight-line motion.
False
What is speed?
Speed is a measure of how fast something or someone is moving. It is the distant moved in a certain time.
What is the formula to find the average speed?
Average speed= total distance ÷ total time
Name three ways that speed can be measured.
- m/s
- km/h
- mph
What does a straight line gradually edging upwards represent (like this /but less steep)
Steady speed
What does a straight horizontal line represent (distance-time)
Stationary
What does a steep (but straight) line represent (like this /) - distance time
Steady (faster) speed
What does a steep (but straight) line downwards represent (like this / but backwards) - distance time
Steady speed (moving backwards)
What does an upwards slope represent - distance time
Speeding up (accelerating) - gets steeper
