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Semester1TestReview
| Question | Answer |
|---|---|
| What are the two things needed to describe velocity? | speed and direction |
| What can be described as a change in position? | motion |
| The speed and direction are needed to describe ___________. | velocity |
| What is a physical property of minerals that describes the shine? | luster |
| Luster that can be described as glassy is called ____________. | virteous |
| The scale used to compare the hardness of different minerals is called ___________ ________ _______. | Moh's Hardeness Scale |
| List five properties typical metals: | 1. silver gray color 2. malleability 3. conductivity 4. ductility 5. luster |
| What forces produces motion? | Unbalanced |
| The smallest quantity of an element is called an ___________. | atom |
| The remains of ancient organisms that can be burned as an energy source is called ________ ________. | fossil fuels |
| A __________ _________ is needed to study the crystals in a mineral. | hand lens |
| Your body uses _______energy to move? | chemical |
| A person hitting a pitched baseball is an example of __________. | work (being done) |
| List the signs of a chemical change: | 1. change in color 2.new substance is formed 3. change in temperature 4. forming a precipitate 5. forming a gas |
| H20 is an example of a ____________. | compound |
| What are the three things needed to determine an objects location? | 1. direction 2. reference point 3. distance |
| The only sure sign that a chemical reaction has occurred is if a ___________ _________ has formed. | new substance |
| Thermal energy moves from ________ to _______ things until both things are the same temperature. | hot to cold (warm to cold) |
| A diamond has a brilliant luster called ______________. | adamentine |
| The physical property of __________ is tested by scratching the mineral with a finger nail or nail. | hardness |
| What are energy resources that are replaced as fast as they are used? | renewable energy resources |
| ______________ is thermal energy transferred by direct contact of solids. An example would be cooking an egg in a pan over a fire. | conduction |
| _____________ is thermal energy flowing through air or water. An example would be central air and heat in your home. | convection |
| Luster that has the appearance of a pearl is called ________________. | pearly |
| _________ is powdery residue that is produced by minerals when rubbed against a unglazed porcelain streak plate. | streak |
| An inorganic solid with a definite chemical makeup, hardness, density, and streak is a __________. | mineral |
| What produces most of the energy people use everyday? | the Sun |
| ___________ thermal energy transfer without matter. It moves through electromagnetic waves, such as light, microwaves, and xrays. | Radiation |
| Baking soda and vinegar are mixed together forming a new substance. We know the new substance was a ______ because bubbling and fizzing we observed. | a gas |
| Luster that is very shiny and highly reflective is called ________. | metallic |
| Name three sources of energy that comes from fossil fuels: | 1.coal 2.natural gas 3.petroleum (oil) |
| If the _________ changes the velocity changes. If the _________ changes the velocity changes. If the both the ______ and the ________ changes the velocity changes. | speed direction speed and direction |
| Describe the energy transformation involved in a battery operated TV remote control. Name the initial energy source and the two energy transformations. | chemical - electrical - radiant |
| ________ and _________ make up the majority of the earth's atmosphere. | Oxygen (02) and Nitrogen (N2) |
| Friction is a force that ________ ______ motion between two surfaces that are in contact (touching). | slows down (resists) |
| Name the 3 main sources used to produce electricity: | 1.fossil fuels 2.nuclear power 3.hydroelectric power |
| A ball will roll faster down a steeper ramp than a less steeper ramp, is a ___________ that can be tested in classroom science experiment. | hypothesis |
| A moving motorcycle has more ________ energy than a parked motorcycle. | kinectic |
| During lab if you notice unlabeled beakers with clear liquids you should ___________ for further ____________. | ask instructions |
| __________is stored in a stretched spring. | elastic potential energy |
| If there is a spill in the lab students must _______ the spill to the teacher, and then ______ any spill approved by the teacher. | report clean |
| Calculate the average speed of a bus that travels 210km in 3 hrs. Show your work and write the unit of measurement. | 70 km/hr. |
| The ability to cause change is _________. | energy |
| What are the steps for measuring the volume of an irregular object? | 1. Measure the volume of the water without the object. 2. Measure the volume of the water with the object in the graduated cylinder. 3. Subtract the first volume from the second volume. |
| What are the steps for calculating density? | 1. Find the mass of the object 2. Find the volume of the water without the object in it. (initial volume) 3. Measure the volume of the water with object in it. 4. Subtract the 1st volume from the the 2nd volume. 5. Divide the mass by the volume. |
| A semi-truck parked on a hill has more ________ energy than a mini cooper parked next to it. | potential |
| The total energy in an object or group of object is called __________ energy. | mechanical |
| _________ is released when nuclei split. | nuclear energy |
| __________ is carried by electromagnetic waves. | radiant energy |
| If you travel across Ft.Worth and find that you travel 45km in 45 minutes, you could say that your _________ speed is 60km/h. | average |
| What is the formula for calculating average speed? | Distance divided by time. (D / T = S) |
| An energy source that is used much faster than it is replaced is called a ____________ ______ ______. | nonrenewable energy resources |
| Name the 5 renewable energy resources: | 1.solar 2.hydroelectric 3.wind 4.geothermal 5.biomass |
Created by:
jschroeder4