9 Questions
What is the formula to calculate speed?
Speed = Distance/Time
Which of the following is a unit of speed?
Miles per hour
What does the speed-time graph of an object moving with constant speed look like?
A straight horizontal line
What happens to the displacement of an object when its velocity and acceleration are in opposite directions?
The displacement increases
In which scenario can a moving object have a zero acceleration?
Moving with constant speed in a straight line
If an object is in motion and its velocity is decreasing, what can be deduced about its acceleration?
It is positive
What is the relationship between the wind speed and the wind energy in the context of the text?
They are directly proportional
How does the design of a wind turbine affect its efficiency in harnessing wind energy?
The effect of blade size on efficiency varies with wind speed
What is the significance of the tip-speed ratio in wind turbine operation?
Optimal tip-speed ratio is crucial for maximizing power extraction
Test your knowledge of motion and speed with this quiz! Explore the formula to calculate speed, units of speed, and the characteristics of a speed-time graph for an object moving with constant speed.
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