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2 cards from this section. Quick, good the night before a test.
What is meant by 'free fall'?
Think about what happens when you drop something.
What does g represent?
It is a constant value on Earth's surface.
What is the acceleration of an object in free fall?
Recall the value of g.
True or False: Heavier objects fall faster than lighter objects in a vacuum.
Consider the effects of gravity only.
A ball is dropped from a height of 20 m. Calculate the time it takes to hit the ground.
Use the equations of motion to find time.
If an object is thrown upwards with a velocity of 30 m/s, calculate how high it will rise before falling back. Assume g = 9.8 m/s².
Think about when the object's velocity becomes zero.
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