WorksheetsUnderstanding Matter Test
Total questions: 38
Worksheet time: 19mins
Name
Class
Date
1.
Particles in liquids constantly bump and flow past each other in _______________.
a)
random motion
b)
specific motion
c)
clear motion
2.
_______________ is the movement of particles from an area of higher concentration to an area of lower concentration.
a)
osmosis
b)
diffusion
c)
random motion
3.
An increase in motion energy is called ____________________.
a)
potential energy
b)
movement
c)
kinetic energy
4.
The study of heat is called _____________________.
a)
heatopolis
b)
thermodynamics
c)
conduction
5.
An increase in volume of a material when particle increases is known as ________________________.
a)
thermal contraction
b)
thermal equilibrium
c)
thermal expansion
6.
____________________ happens when particle motion decreases and causes the particles to occupy less volume.
a)
thermal contraction
b)
thermal expansion
c)
thermal equilibrium
7.
____________________is the measure of the average kinetic energy of the particles in a material.
a)
heat
b)
transfering
c)
temperature
8.
The change of state from a gas to a liquid is ______________________.
a)
evaporation
b)
condensation
c)
freezing
9.
_____________________ is the change of state from a liquid to a gas.
a)
vaporization
b)
condensation
c)
freezing
10.
Evaporation and boiling are two ways vaporization happens.
a)
true
b)
false
11.
_______________________ is stored energy due to the interaction between particles or objects.
a)
thermal energy
b)
kinetic energy
c)
potential energy
12.
___________________ is the total energy of a system that is dependent on the number of particles in a system, the state of the material, and the temperature.
a)
potential energy
b)
thermal energy
c)
kinetic energy
13.
A(n) _______________________ is a system that does not exchange matter or energy with the environment.
a)
closed system
b)
open system
c)
source object
14.
A(n) _____________________ is a system that exchanges matter or energy with the environment.
a)
closed system
b)
open system
c)
source object
15.
The object that provides the energy for an energy transfer is called the _________________________________.
a)
receiver object
b)
source object
c)
open system
16.
The object that gains the energy from an energy transfer is called the _________________________________________.
a)
receiver object
b)
source object
c)
open system
17.
The amount of thermal energy transferred from a region of higher temperature to a region of lower temperature is ________________________________________________.
a)
convection
b)
heat
c)
radiation
18.
_________________________________ is the transfer of thermal energy through touching.
a)
convection
b)
conduction
c)
radiation
19.
When the temperatures of materials that are in contact are the same, the materials are said to be in ______________________.
a)
thermal expansion
b)
thermal contraction
c)
thermal equilibrium
20.
______________________ is the transfer of thermal energy from one material to another by electromagnetic waves.
a)
Conduction
b)
Convection
c)
Radiation
21.
________________________ is the transfer of thermal energy through bubbles.
a)
Convection
b)
Conduction
c)
Radiation
22.
______________________ is the amount of thermal energy required to increase the temperature of 1kg of a material by 1 degree Celsius.
a)
temperature
b)
specific heat
c)
heat
23.
A _______________________ is a material through which thermal energy flows easily.
a)
thermal conductor
b)
thermal insulator
c)
thermal heat
24.
A _______________________ is a material through which thermal energy does not flow easily.
a)
thermal conductor
b)
thermal insulator
c)
thermal heat
25.
A substance where particles are very close together and vibrate in place is a ____________________.
a)
solid
b)
liquid
c)
gas
26.
A substance where particles slide past each other is a _________________________.
a)
solid
b)
liquid
c)
gas
27.
A substance where particles are widely spaced and move at random speed is a ___________________________.
a)
solid
b)
liquid
c)
gas
28.
Solids have a definite shape and a definite volume.
a)
true
b)
false
29.
Liquids have a definite shape and an indefinite volume.
a)
true
b)
false
30.
Gasses have an definite shape and an indefinite volume.
a)
true
b)
false
31.
Plasma is an ionized gas.
a)
true
b)
false
32.
A(n) ____________________ is a small particle that is the building block of matter.
a)
element
b)
atom
c)
molecule
33.
A(n) ________________________ is matter with a composition that is always the same.
a)
element
b)
atom
c)
substance
34.
A(n) _____________________ is a substance made up of only one kind of atom.
a)
element
b)
substance
c)
atom
35.
A substance made of two or more different kinds of elements chemically bonded together is a __________________________.
a)
molecule
b)
compound
c)
solution
36.
A _____________ is a group os chemical symbols and numbers that represent the elements and the number of atoms of each element that make up a compound.
a)
chemical formula
b)
chemical name
c)
chemical symbol.
37.
_______________ is the amount of force per unit area applied to an object's surface.
a)
Random force
b)
Pressure
c)
Squeeze force
38.
________________ are groups of atoms that are held together by chemical bonds and act as a unit.
a)
Elements
b)
Compounds
c)
Molecules
100 %
