Scientists
This scientist made the first discoveries about how gravity works.
Who is Sir Isaac Newton?
If an object is traveling at an average speed of 50 m/s, how long would it take to travel 22,000 meters?
What is 440 seconds?
These kinds of forces are produced when the net force is not equal to 0N.
What is an unbalanced force?
This occurs when air friction pushes with the same force as gravity.
What is terminal velocity?
km/hr
What is speed?
This scientist gave us a more complete understanding of gravity, and his theories represent the most current understanding we have of gravity.
Who is Albert Einstein?
What is the average acceleration of an object that accelerates from 15 m/s to 75 m/s over a span of 8 seconds?
What is 7.5 m/s2 ?
This term describes objects that are being influenced only by gravity.
What is free fall?
Another term for air friction or air resistance.
mi/s west
What is velocity?
This scientist was convinced that heavier objects fell to Earth faster than lighter ones.
Who is Aristotle?
How long would it take an object dropped from rest to obtain a velocity of 250 m/s?
What is 25.5 seconds?
This is the rate at which velocity changes.
What is acceleration?
How does the mass of an object affect how hard gravity pulls on it?
What is the more mass an object has, the harder gravity pulls on it?
cm/hr2
What is acceleration?
This scientist proved that all objects accelerate to Earth at the same rate.
Who is Galileo?
DAILY DOUBLE. Kevin the watermelon is falling on another planet. If you started timing Kevin's fall when he was already traveling 5 ft/sec, what is Kevin's acceleration if he traveled 675 feet in 3.8 seconds?
What is 90.9 ft/sec2 ?
This describes what happens when velocities are combined.
What is resultant velocity?
Briefly describe how orbiting occurs.
What is objects in free fall that are moving at the right horizontal velocity to keep 'falling' over the Earth's surface?
g/cm3
What is density?
Put the four scientists we've learned about in chronological order of when they lived. (oldest to youngest)
Who is Aristotle, Galileo, Newton, and Einstein?
How long would it take a free falling pumpkin to fall 437 meters if dropped from rest?
What is 9.44 seconds?
This law describes how gravity works.
What is Newton's Law of Universal Gravitation?
Explain how an object's horizontal velocity affects the object's vertical acceleration.
What is that the vertical acceleration is unaffected?
kg(m/s2)
What is force? (what Newton stands for)