7.4 Free Fall

Question 1

What did galileo galileli say about the rate at which objects fall

Answer 1

Because any number of identical objects must fall at the same rate then any such object must fall at the same rate as the rest put together

Question 2

What did Galileo determine from his test to see if a falling object speeds up

Answer 2

The ball accelerated as it rolled down the slope
The steeper the slope the greater the acceleration

Therefore the object falling vertically accelerates

Question 3

Using free fall measurements what would a graph of distance travelled against time ^2 look like

Answer 3

Would give a straight line

The gradient would be 1/2 a therefore 2x the gradient would be acceleration