Motion
Forces
Newton's Laws of Motion
Simple Machines
Isaac Newton Page 418 and 440
100
How do you calculate speed?
Speed equals distance divided by time.
100
What is force?
A force is a push or pull that acts on an object.
100
Define inertia.
Inertia is the tendency of an object to resist any motion.
100
what are the parts of a wheel and axle?
The parts of a wheel and axle are a: circular object and a shaft.
100
What year was Isaac Newton born?
1642
200
Define velocity.
Velocity describes the speed and the direction of an object's motion.
200
What is work?
Work is done when a force moves an object.
200
Define acceleration. How do you calculate acceleration?
Acceleration is the rate at which the velocity of an object changes over time. Acceleration equals force divided by mass.
200
Define machine.
A machine is a device that changes the direction or the amount of force needed to do work.
200
Besides being a scientist, Newton was also a what?
Mathematician and Philosopher.
300
What kind of motion does a rubber band have?
vibrational motion.
300
What is power? How do you calculate power?
Power is the rate at which work is done. Power equals work divided by time.
300
What are the parts of a lever? Give an example of a lever.
The parts of a lever are a: fulcrum and a stiff bar. Example...
300
Name one of the books Newton wrote.
Principia Mathematica or Opticks.
400
How is motion measured?
Motion is always measured in relationship with some location called a point of reference.
400
Explain friction and give an example.
Friction is the force that results when two materials rub against each other. example...
400
What is Newton's First Law? Give an example of it.
Newton's First Law of motion says that unless a net force acts on an object, the object will remain in constant motion. An object at rest stays at rest until a net force acts on it. Example...
400
Fill in the blank. Using an __________ ___________ covers more distance, but a smaller amount of force is used.
Inclined Plane
400
From what university did Newton graduate from? What year was that?
Cambridge University in 1665.
500
Compare the motion of your chair to the sun.
Since your chair is on the planet Earth, and Earth is orbiting around the sun, then your chair is also moving/in motion around the sun.
500
Compare gravity vs. magnetism and electricity.
Gravity is a pull, while magnetism and electricity can push and pull. Gravity cannot be blocked while magnetism and electricity can be blocked. These forces are the same because all three forces can act on an object even if they don't touch. Also, their force increases as objects get closer.
500
Define equilibrium. Give and example of it.
Equilibrium is when all the forces acting on an object balance each other. Example...
500
What is a complex machine? Why is a sailboat an example of a complex machine?
A complex machine is a machine that has two or more simple machines. A sailboat is a simple machine because it uses more than two simple machines. It uses a pulley to pull up the sail. It also uses a wheel and axle to pull up the anchor...
500
Why is Newton considered one of the greatest scientists to have ever lived?
Newton is considered one of the greatest scientists to have ever lived because we still apply his laws today in order to understand how the world/universe works. (or a similar answer...)
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