A ball rolls down a hill and its speed at each second is: 2, 4, 6, 8. What pattern do you see?
AThe ball is slowing down
BThe ball is moving at a constant speed
CThe ball is speeding up by the same amount each second
DThe ball is moving randomly
The speed increases by 2 each second, which is a pattern of steady speeding up (constant acceleration).
Question 2 True / False
An object moving at a steady speed will cover equal distances in equal amounts of time.
TTrue
FFalse
Answer: True
Constant speed means the same distance is covered each second. If a car goes 10 meters every second, it covers 10 meters in the first second, 10 in the second, and so on.
Question 3 Short Answer
How can you figure out the motion pattern of a rolling ball?
Think about your answer, then reveal below.
Model answer: Record the ball's position at regular time intervals and look at how the distance changes from one interval to the next.
By measuring position over time, you can see if the ball covers the same distance each time (constant speed), more distance each time (speeding up), or less distance (slowing down).