Physical Science final exam 2019

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An assumption that a person makes about the world that helps him to investigate the world and understand it from a certain point of view.

Presupposition

the distance between the resting point and a crest or trough

amplitude

what produces the heat that warms the air temperature on Earth

the sun

A radiator that is giving off heat will have greater _______ than a burning candle

thermal energy

the energy of moving particles in matter is called

thermal energy

we can measure temperature using a _______

thermometer

in which lab would a student MOST LIKELY use a thermometer

to find out how fast cocoa cools in a plastic cup

a low point of a wave

trough

s = d/t

unit for speed

defined as a kilogram meter per second squared

unit of force

the rate of displacement of a system.

velocity

to move rapidly back and forth

vibrate

if two guitar strings produce the same pitch when plucked, they must be:

vibrating at the same rate

how loud or soft a sound is

volume

the amplitude of a sound wave determines

volume/dynamics (loud/soft)

sound waves move faster when the medium is:

warm

Heat always flows from something ______ to something ______

warmer; cooler

the distance between one crest or trough to the next on a wave

wavelength

The perspective from which a person sees or interprets all matters of life

worldview

In science we...

explore, explain, and describe to glorify God

A substance that can flow

fluids

32 degrees Fahrenheit is the ______ point of water

freezing

A contact force that opposes the movement of objects

friction

the force that occurs when one object rubs against another

friction

when you rub your hands together, heat is produced by

friction

sound waves travel fastest through a:

gas

name two conductors:

gold and copper

how many ways can heat be produced

3

how many different types of bases make up DNA?

4

The rate of change of the velocity or speed of a system during a time interval

Acceleration

Why catastrophes and disasters occur

Because man sinned

what are units in which temperature is measured

Fahrenheit and Celsius

states of matter

Gas, solid, liquid, plasma

the action or process of observing something or someone carefully or in order to gain information.

Observation

Steps of Scientific Method

Pose a question, form a hypothesis, design an experiment, gather data, draw conclusions, communicate

uses the fulcrum in between the applied force and load

The first class lever

uses the load between the fulcrum and applied force and

The second class lever

uses the applied force between the fulcrum and the load

The third class lever

to give a prejudiced outlook to

bias

a group of campers are sitting around a campfire. How is heat energy being produce?

burning

0°C + 273.15 = 273.15K

celcius to kelvin

complete electrical connection around which current flows or circulates

closed circuit

sound waves move slower when the medium is:

cold

one of three methods of heat transfer from a hotter to a cooler object; involves direct contact

conduction

metals are good ______ of heat

conductors

_______ is the flow of energy that occurs in a gas or liquid

convection

one of three methods of heat transfer from hotter to cooler locations

convection

a high point of a wave

crest

Theories explain, laws describe

difference?

what kind of energy is produced by a toaster

electrical energy

All matter on earth contains ______

energy

when an object is heated, it will _______

expand

values on the y-axis, and time values on the x-axis. ... Acceleration is defined as a change in an object's velocity, so if an object is accelerating at 2 m/s/s, then every 1 second, the object will gain 2 m/s.

graph of acceleration

A quantity of thermal energy that flows from one system to another, resulting in a change of temperature or state

heat

any material that does not allow heat to pass through it easily

insulator

_______ are used to help conserve heat in houses

insulators

what happens to boiling water after you add ice cubes to it

its temperature falls

energy which a body possesses by virtue of being in motion.

kinetic energy

which of the following actions on a guitar will lower the pitch?

loosening a string (make it longer)

One of the fundamental concepts of creation. Anything that Occupies space and has mass

matter

Sound can only travel through matter, which is called a:

medium

A distinct particle formed when two or more atoms covalently bond together

molecules

A change of position during a time interval

motion

a change in position with respect to a reference point is called

motion

an electrical circuit that is not complete

open circuit

name two insulators

paper and styrofoam

an electrical circuit or portion of a circuit with multiple current paths so that the supplied current must split up to flow through each load in the circuit

parallel circuits

How high or low a sound is

pitch

The frequency of a sound wave determines

pitch (high/low)

the energy possessed by a body by virtue of its position relative to others, stresses within itself, electric charge, and other factors.

potential energy

one of three methods of heat transfer from hotter to cooler locations involving radiant energy

radiation

the undisturbed position of particles when they are not vibrating

resting point

an electrical circuit or portion of a circuit with a single current flow path through a connected set of electrical loads

series circuit

sound waves travel fastest through a:

solid

The ______ is the ultimate source of heat energy for the earth

sun

A measure of the average kinetic energy of the particles in a substance; the hotness or coldness of an object, measured in degrees.

temperature

affects how fast sound waves move

temperature

which pipe in a pipe organ makes the lowest sound?

the longest and thickest pipe


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