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motion Flashcards

1
Q

It is the distance traveled per unit time.

A

speed

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2
Q

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

A

3rd law of motion

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3
Q

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

A

1st law of motion

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4
Q

It is a push or pull

A

force

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5
Q

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

A

gravity

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6
Q

It is the speed of an object in one direction.

A

velocity

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7
Q

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

A

acceleration

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8
Q

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

A

motion

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9
Q

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

A

2nd law of motion

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10
Q

It is the resistance to changes in motion.

A

inertia

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11
Q

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

A

speed

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12
Q

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

A

velocity

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13
Q

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

A

distance

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14
Q

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

A

displacement

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15
Q

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

A

time

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16
Q

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

A

acceleration

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17
Q

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.

A

uniformly accelerated motion

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18
Q

*The action of changing
location or position.

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

A

motion

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19
Q

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

A

projectile motion

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20
Q

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

A

projectile

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21
Q

object that is thrown

A

projectile

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22
Q

the path traveled by a projectile. (curved path)

A

trajectory

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23
Q

uniform motion

A

horizontal motion

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24
Q

free fall

A

vertical motion

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25
Q

two types of projectile motion

A
  1. Horizontally launched Projectile
  2. Projectiles Launched at an Angle
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26
Q

the object that shows a projectile motion.

A

projectile

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27
Q

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

A

trajectory

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28
Q

the horizontal distance covered by a projectile.

A

range

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29
Q

the vertical distance covered by a projectile

A

height

30
Q

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

A

maximum height of a projectile

31
Q

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

A

angle of projection

32
Q

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

A

momentum

33
Q

unit for momentum

A

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

34
Q

unit for impulse

A

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

35
Q

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

A

impulse

36
Q

two types of collision

A

elastic collision
inelastic collision

37
Q

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.

A

elastic collision

38
Q

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.

A

inelastic collision

39
Q

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

A

work

40
Q

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).

A

joule

41
Q

two types of mechanical energy

A

potential energy
kinetic energy

42
Q

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.

A

potential energy

43
Q

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

A

kinetic energy

44
Q

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

A

James Prescott Joule

45
Q

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

A

false

46
Q

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

A

heat

47
Q

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

A

work

48
Q

Energy cannot be created nor destroyed.

A

true

49
Q

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.

A

first law of thermodynamics

50
Q

a device that changes thermal
energy into mechanical work.

A

heat engine

51
Q

two types of heat engines

A

1.Internal combustion engine
2.External combustion engine.

52
Q

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.

A

Internal combustion engine

53
Q

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

A

External combustion engine

54
Q

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

A

geothermal energy

55
Q

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.

A

geothermal power plants

56
Q

3 types of geothermal power plants

A

*dry steam
*flash steam
*binary cycle

57
Q

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.

A

dry steam plant

58
Q

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.

A

flash cycle steam plants

59
Q

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.

A

binary cycle plants

60
Q

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.

A

electrical energy

61
Q

A facility where electricity is generated from energy sources.

A

power plant or power station

62
Q

2 types of power plants

A

Hydroelectric power plant
Solar power farm

63
Q

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

A

Hydroelectric Power Plant

64
Q

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

A

generator

65
Q

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

A

solar power farm

66
Q

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.

A

Step 1. Power plants generate electricity.

67
Q

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

A

Step 2. Transformer step up voltage for transmission

68
Q

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

A

step-up transformer

69
Q

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.

A

Step 3. Transmission lines carry electricity over long distances.

70
Q

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.

A

Step 4. Neighborhood transformer step down
voltage.

71
Q

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

A

Step 5. Distribution lines carry electricity to house.

72
Q

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.

A

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

motion (1 decks)

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