Work and energy

Question 0

Reference point

Answer 0

A location to which another location is compared

Question 1

Postion

Answer 1

An objects location

Question 2

Motion

Answer 2

A change of position overtime overtime

Question 3

Speed

Answer 3

A measure of how fast something moves thorough a particular distance over a definite time period. Speed is distance divided by timete

Question 4

Velocity

Answer 4

A speed in a specific direction

Question 5

Vector

Answer 5

A quantity that has both size and direction

Question 6

Acceleration

Answer 6

The rate at which velocity changes over time

Question 7

Force

Answer 7

A push or a pull ; something that changes the motion of an object

Question 8

Net force

Answer 8

The overall force acting on an object when all of the forces acting on it are combined

Question 9

Newton’s first law

Answer 9

A scientific law staing that objects in motion remain motion

Question 10

Work

Answer 10

The use of force to move an object over a distance

Question 11

Joule

Answer 11

A unit used to measure energy and work

Question 12

Potential energy

Answer 12

Stored energy

Question 13

Kinetic energy

Answer 13

The energy of motion

Question 14

Mechanical energy

Answer 14

A combination of kinetic energy and potential energy an object has

Question 15

Conservative energy

Answer 15

law of conservation of energy states that the total energy of an isolated system remains constant—it is said to be conserved over time

Question 16

Power

Answer 16

The rate at which work is done

Question 17

Watt

Answer 17

The watt (symbol: W) is a derived unit of power in the International System of Units (SI), named after the Scottish engineer James Watt (1736–1819). The unit is defined as joule per second[1] and can be used to express the rate of energy conversion or transfer with respect to time.

Question 18

Horsepower

Answer 18

Horsepower (hp) is a unit of measurement of power (the rate at which work is done). There are many different standards and types of horsepower. The most common horsepower—especially for electrical power—is 1 hp = 746 watts. The term was adopted in the late 18th century by Scottish engineer James Watt to compare the output of steam engines with the power of draft horses. It was later expanded to include the output power of other types of piston engines, as well as turbines, electric motors and other machinery.[1][2] The definition of the unit varied between geographical regions. Most countries now use the SI unit watt for measurement of power.