1st qtr exam 2024

Question 1

The gap between the initial position and the final
position of an object.

Answer 1

Displacement

Question 2

The speed at which something moves in one
direction.

Answer 2

Velocity

Question 3

The time rate of change of the velocity of an object

Answer 3

Acceleration

Question 4

Refers to how strong the force is.

Answer 4

Magnitude

Question 5

The greater the magnitude the faster the

Answer 5

velocity.

Question 6

Force

Instruments used to measure:

Answer 6

spring
balance

Question 7

force Units:

Answer 7

Newton (N) or
kg·m/s

Question 8

Refers to the points where the object goes.

Answer 8

Direction

Question 9

The location where the force is applied.

Answer 9

Point of application

Question 10

Forces that result from
physical or direct contact
between two bodies

Answer 10

Contact Forces

Question 11

It is perpendicular to the surface an object is in contact with

Answer 11

Normal force

Question 12

s

Field force; long-range force

Do not involve direct
contact to have any effect on
the other object

Answer 12

Non-Contact Force

Question 13

Force acting against or opposite in contact with

Answer 13

Frictional force

Question 13

force due to gravity

Answer 13

gravitational force

Question 14

Force applied to string, rope, chain or cable

Answer 14

Tension force

Question 15

equal in magnitude but opposite in directions

do not cause a change in motion

Answer 15

Balanced force

Question 16

NOT equal in magnitude and opposite in
directions

do cause a change in motion

Answer 16

unBalanced force

Question 17

it is the sum of all forces acting on an object

Answer 17

Net Force

Question 18

newtons 3 laws of motion

Answer 18

inertia
acceleration
interaction

Question 19

It states that a body at rest will
continue to be at rest

Answer 19

Law of Inertia

Question 20

• is the tendency of a body to resist any change in its motion. The
  greater the mass of an object, the greater inertia it has. Also, the lesser the
  mass, the lesser the inertia.

Answer 20

Inertia

Question 21

States that acceleration is directly proportional to the force and is
inversely proportional to the mass.

Answer 21

THE LAW OF ACCELERATION

Question 22

THE LAW OF ACCELERATION formula

Answer 22

a = f/m

Question 23

is a type of motion that allows an object to follow a
circular path while maintaining a constant speed.

Answer 23

Uniform Circular

Motion

Question 24

, also known as center- seeking force, comes from the word "centri" which means center

Answer 24

Centripetal force

Question 25

centripetal force formula

Answer 25

a= v/r

Question 25

- number ofrotation orrevolution per unittime; measured in hertz (Hz) or revolution per second (rev/s)

Answer 25

Frequency

Question 25

-the amount oftime needed to complete one revolution orrotation; measured in second (s)

Answer 25

Period

Question 25

work formula

Answer 25

w = fd

Question 26

Work with an Angle

Answer 26

W= Fcosθ d

Question 27

is created when something vibrates, sending waves through the air or other materials.

Answer 27

Sound

Question 28

The particles of the medium is perpendicular to the direction of the motion of the wave’s propagation.

Answer 28

Transverse waves

Question 29

The particles of the medium move back and forth parallel to the direction the wave is travelling.

Answer 29

longitudinal waves.

Question 30

, where particles are closer together,

Answer 30

compression

Question 30

The particles travel in circular motion.

Answer 30

surface.

Question 30

where particles are spread apart

Answer 30

rarefaction

Question 30

is the ability to do work.

Answer 30

Energy

Question 31

Potential Energy formula

Answer 31

PE = mgh

Question 32

gravity

Answer 32

-9.8

Question 32

kinetic energy formula

Answer 32

mv1/2

Question 33

The Law of Conservation of Energy

Answer 33

Energy can neither be created nor destroyed. It can be transferred to another object or converted into a different form. The amount of energy stays the same.

Question 34

is an electromagnetic wave that an travel even without a medium .

Answer 34

Light

Question 35

is the light we can see, like the colors of a rainbow.

Answer 35

Visible light

Question 36

1.REFLECTION

Answer 36

Bouncing back of light. When an incident light hits a reflective surface, it will be reflected off that surface.

Question 37

REFRACTION

Answer 37

Bending back of light when it passes through different media. When light travels from air to liquid, the light is bent, making the straw appear to be broken.

Question 38

Bending back of waves when it passes through gap or around edges. is the bending of light around an obstacle or through a narrow opening. It's like when light squeezes through a tiny gap and spreads out in different directions.

Answer 38

DIFFRACTION

Question 39

allows an unpolarized light to vibrate orbto focus in one direction or on a single plane. Examples are flashlights, sunglasses, and how headlight works. Wearing sunglasses on a sunny day allows us to filter some light waves.

Answer 39

Polarization

Question 40

Temperature is a measure of how hot or cold something is.

Question 41

So the formula for the speed of the sound and temperature is expressed as:

Answer 41

v=331+0.6 x T