Vocabulary 1
The act of changing position from one place to another.
What is motion
When a machine is used and the item feels lighter, the machine has a ___ ___.
What is a mechanical advantage?
The metric unit of mass.
What is a kilogram?
This scientist is responsible for the Laws of Motion.
Who is Isaac Newton?
A machine made of more than one pulley.
What is a block and tackle?
This changes depending on it's location.
What is weight?
When a machine is used and the object being moved feels heavier, the machine has a ___ ___.
What is a mechanical disadvantage?
You must have one of these to see an object moving in space.
What is a frame of reference?
Every action has an equal and opposite reaction.
What is the third law of motion?
The force of attraction between two objects.
What is gravity?
The change in speed of an object.
What is acceleration?
A lever with the effort force in the middle.
What is a 3rd class lever?
The speed of an object at a given moment.
What is instantaneous speed?
The number of laws of motion.
What is three?
A lever that has the fulcrum in the middle.
What is a first class lever?
The measurement of the amount of matter in an object.
What is mass?
A lever with the resistance force in the middle.
What is a second class lever?
The ratio of the resistance force to the effort force.
What is mechanical advantage?
Inertia
What is the first law of motion?
A force that opposes motion when two surfaces rub together.
What is friction?
The tendency of an object to stay at rest or keep moving in a straight line.
What is inertia?
Name the 6 simple machines.
What is pulley, wheel & axle, inclined plane, wedge, screw, & lever?
A device that makes work easier by changing the size or direction of a force.
What is a machine?
Acceleration requires a force and an object with mass.
What is the second law of motion?
The metric unit of force.
What is a newton?