Matter & Energy Test 2

What is a simple machine consisting of a wheel over which a rope of cable passes?

What is a combo of one or more movable pulleys?

The distance an object travels per unit of time

Whose teachings dominated scientific thought for almost 200 years?

What is the rate of doing work?

What is the study of motion & force?

An object that hangs from a fixed point and swings back and forth because of gravity

What is the term for a measure of how much help a machine provides?

What is any mathematical quantity that has both magnitude and direction?

The measure of how well a machine converts input work to output work

What type of friction affects stationary objects, preventing them from moving?

The simple maching which is like an inclined plane that modifies the applied force and directs it to the side.

What principle states: the velocity of an object doesn't change unless the object is acted upon by an external force?

What term do physicists use to refer to any change in velocity?

What quantity of motion is defined as the product of an object's mass and velocity?

Which device is considered a circular lever and can be used to multiply distance, speed, or force?

Who discovered the laws of motion and gravitation, laying the foundation for much of modern physical science?

What is the space relative to which motion is measured?

The sum of 2 or more vectors

What type of friction affects a sliding object already in motion?

What type of quantity consists of only a magnitude, with no direction.

How are levers classified?

Together, the branches of physics discovered before 1900 are called:

What is the term for devices used to multiply force for the purpose of doing work?

Which of the following forces is the attractive force that exists between any 2 bodies and is caused by their mass.

Which of the following quantities represents any change in an object's position?

The center-seeking force that causes an object to travel in a curved path

Which of the following is a form of assistance that a simple machine can provide?

What is the SI unit of work?

What principle states : for every action there is an equal and opposite reaction?

Which of the following statments correctly describes work and energy?

What is the output distance of a screw?

What is the velocity at which air resistance stops a falling object from accelerating?

What branch of physics addresses the effects to forces on matter?

What simple machine is a sloping surface that allows an object to be raised without being lifted straight up?

What SI unit is used to measure power?