motion

Question 1

It is the distance traveled per unit time.

Answer 1

speed

Question 2

For every action, there is an equal and opposite reaction.

Answer 2

3rd law of motion

Question 3

An object at rest tends to stay in motion with the same speed and the same direction unless acted upon by an external force.

Answer 3

1st law of motion

Question 4

It is a push or pull

Answer 4

force

Question 5

It is an invisible force that pulls object toward the center of an object.

Answer 5

gravity

Question 6

It is the speed of an object in one direction.

Answer 6

velocity

Question 7

It is the rate of change of the velocity of an object with time.

Answer 7

acceleration

Question 8

It is the change of the position of an object with time.

Answer 8

motion

Question 9

The acceleration of an object which directly related to the net force and inversely related to its mass.

Answer 9

2nd law of motion

Question 10

It is the resistance to changes in motion.

Answer 10

inertia

Question 11

is the rate at which an object is moving along a path; scalar quantity.

Answer 11

speed

Question 12

is the rate and direction of an object’s movement; vector quantity.

Answer 12

velocity

Question 13

how much ground an object has covered during its motion; scalar quantity

Answer 13

distance

Question 14

how far out of place an object is or the object’s overall change in position; vector quantity

Answer 14

displacement

Question 15

how long it took the object from one position to another; scalar quantity

Answer 15

time

Question 16

rate at which velocity changes with time, in terms of both speed and direction; vector quantity

Answer 16

acceleration

Question 17

A body is said to have uniform acceleration if it maintains a constant change in its velocity in each time interval along a straight line.

Answer 17

uniformly accelerated motion

Question 18

*The action of changing
location or position.

*The change with time
of the position and
orientation of a body.

Answer 18

motion

Question 19

The motion of any object launched into the air, and it is acted only upon by the force of gravity.

Answer 19

projectile motion

Question 20

any object that has been thrown, shot, or launched upon which the only force acting is gravity.

Answer 20

projectile

Question 21

object that is thrown

Answer 21

projectile

Question 22

the path traveled by a projectile. (curved path)

Answer 22

trajectory

Question 23

uniform motion

Answer 23

horizontal motion

Question 24

free fall

Answer 24

vertical motion

Question 25

two types of projectile motion

Answer 25

1. Horizontally launched Projectile 2. Projectiles Launched at an Angle

Question 26

the object that shows a projectile motion.

Answer 26

projectile

Question 27

the path covered by a projectile which is a parabolic or curve-like figure.

Answer 27

trajectory

Question 28

the horizontal distance covered by a projectile.

Answer 28

range

Question 29

the vertical distance covered by a projectile

Answer 29

height

Question 30

the distance from the point the object is released up to the highest point it reached on air.

Answer 30

maximum height of a projectile

Question 31

the angle between the initial velocity and the horizontal plane where the object is thrown.

Answer 31

angle of projection

Question 32

a moving object’s tendency to resist any change in its state of motion; inertia in motion.

Answer 32

momentum

Question 33

unit for momentum

Answer 33

SI unit is kilogram meters per second or kg. m/s.

Question 34

unit for impulse

Answer 34

Newton-seconds N.s. kg. m/s

Question 35

An external force acting on an object over a specific time leads to a change in momentum of the object.

Answer 35

impulse

Question 36

two types of collision

Answer 36

elastic collision inelastic collision

Question 37

the total kinetic energy of the system does not change and colliding objects bounce off after the collision. An example is the balls in billiard games.

Answer 37

elastic collision

Question 38

the total kinetic energy of the system changes or converted into another form of energy. Objects that stick together after the collision are said to be perfectly inelastic. An example is the collision of two cars.

Answer 38

inelastic collision

Question 39

When a force acts upon an object to cause a displacement of the object, it is said that ____ was done upon the object.

Answer 39

work

Question 40

is equal to the energy transferred to (or work done on) an object when a force of one newton acts on that object in the direction of the force's motion through a distance of one meter (1 newton meter or N x m).

Answer 40

joule

Question 41

two types of mechanical energy

Answer 41

potential energy kinetic energy

Question 42

Energy in matter due to arrangements of its parts, composition, location, and structure. It is commonly considered as stored energy having the potential to do mechanical work.

Answer 42

potential energy

Question 43

Energy in moving matter and wave. Some forms of kinetic energy are motion, radiant, sound, and thermal waves.

Answer 43

kinetic energy

Question 44

who experimentally proved the mechanical equivalence of heat, and energy.

Answer 44

James Prescott Joule

Question 45

Heat cannot be turned into work and doing work releases heat.

Answer 45

false

Question 46

The energy transferred from one system to another by thermal interaction. The units of heat are therefore the units of energy, or joules

Answer 46

heat

Question 47

The transfer of energy by any process other than heat. Like heat, the unit measurement for work is joules

Answer 47

work

Question 48

Energy cannot be created nor destroyed.

Answer 48

true

Question 49

The change in internal energy of a system equals the difference between the heat taken in by the system and the work done by the system.

Answer 49

first law of thermodynamics

Question 50

a device that changes thermal energy into mechanical work.

Answer 50

heat engine

Question 51

two types of heat engines

Answer 51

1.Internal combustion engine 2.External combustion engine.

Question 52

burns fuel inside the engine. Gasoline engines and diesel engines are an example of this. These engines operate on a four-cycle stroke namely intake, compression, power, and exhaust.

Answer 52

Internal combustion engine

Question 53

burns fuel outside the engine. Steam engine is an example.

Answer 53

External combustion engine

Question 54

*heat energy that is stored within the Earth’s interior. The word geothermal comes from the Gree words geo (earth) and therme (heat).

Answer 54

geothermal energy

Question 55

are built in a place that is particularly hot just below the surface like near a geyser, hot springs, or somewhere with considerable volcanic activity.

Answer 55

geothermal power plants

Question 56

3 types of geothermal power plants

Answer 56

*dry steam *flash steam *binary cycle

Question 57

These plants use dry steam that is naturally produced in the ground. This steam travels from the production well to the surface and through a turbine After transferring its energy to the turbine it condenses and is injected back into the Earth.

Answer 57

dry steam plant

Question 58

These types are the most common due to the lack of naturally occurring high quality steam. In this method, water must be over 180°C, and under its own pressure, it flows upwards through the well. This is a lower temperature compared to what dry steam plants require.

Answer 58

flash cycle steam plants

Question 59

are expected to be the most commonly used type of geothermal power plant in the future, as locations outside of the known hot spots begin to use geothermal energy.

Answer 59

binary cycle plants

Question 60

Energy that results from the movement of charges since technically we view it as equal to the electrical potential energy and the work done in moving charges from a point to another.

Answer 60

electrical energy

Question 61

A facility where electricity is generated from energy sources.

Answer 61

power plant or power station

Question 62

2 types of power plants

Answer 62

Hydroelectric power plant Solar power farm

Question 63

It uses water to run a turbine. Water is stored in a reservoir through dams.

Answer 63

Hydroelectric Power Plant

Question 64

what converts mechanical energy into electrical energy. It works on the principle of electromagnetic induction.

Answer 64

generator

Question 65

Sunlight hits the solar panels, and creates an electric field.

Answer 65

solar power farm

Question 66

Electrical energy is generated at the power station (also referred to as power plant) by huge generator. During the electricity generation stage, high voltage of electricity is produced.

Answer 66

Step 1. Power plants generate electricity.

Question 67

The current generated from power plants is sent through transformers to increase the voltage.

Answer 67

Step 2. Transformer step up voltage for transmission

Question 68

A transformer that is designed to increase the voltage is called a _____________.

Answer 68

step-up transformer

Question 69

Transmission is the movement of electricity from a generating site to a substation where it is distributed to homes. Transmission lines are constructed overhead electrical towers or underground. They carry electricity at high voltage from the power to a substation.

Answer 69

Step 3. Transmission lines carry electricity over long distances.

Question 70

A step-down transformer lowers voltage in distribution lines. Voltage is lowered in preparation for distribution to households. Distribution substation uses a smaller step down transformer to decrease the voltage so that it can be sent through distribution poles.

Answer 70

Step 4. Neighborhood transformer step down voltage.

Question 71

Electricity travels through small transmission lines called distribution lines toward your home. These electric lines conduct lower voltage of electricity.

Answer 71

Step 5. Distribution lines carry electricity to house.

Question 72

Pole step-down transformer further reduce the voltage before it enters our house. A small transformer mounted on a distribution pole further reduces the voltage to 110-220V. This is done to ensure that only 220 V goes into our homes.

Answer 72

Step 6. Pole transformer step down electricity before it enters home.