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Just. A Couple. More Days. Until. EOCT!. 10 pt. 10 pt. 10 pt. 10 pt. 10 pt. 20 pt. 20 pt. 20 pt. 20 pt. 20 pt. 30 pt. 30 pt. 30 pt. 30 pt. 30 pt. 40 pt. 40 pt. 40 pt. 40 pt. 40 pt. 50 pt. 50 pt. 50 pt. 50 pt. 50 pt.
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Just A Couple More Days Until EOCT! 10 pt 10 pt 10 pt 10 pt 10 pt 20 pt 20 pt 20 pt 20 pt 20 pt 30 pt 30 pt 30 pt 30pt 30 pt 40 pt 40 pt 40 pt 40 pt 40 pt 50 pt 50 pt 50 pt 50 pt 50pt
A toaster is plugged into a wall outlet that has a voltage of 110 volts. If the toaster’s resistance is 10 ohms. What current runs through the toaster?
Use the table to answer the following question: Salt Flame Color sodium chloride yellow potassium chloride violet copper chloride blue calcium chloride red A flame test is performed on a small amount of unknown substance burned blue. The substance is most likely …
Which of the following is a chemical property of iodine? • Violet as a gas • Silver and black as a solid • Reacts with starch to give a dark blue color • A solid at room temperature
An ionic bond typically forms between certain types of elements. Which pair of elements will form an ionic compound? • Na and Cu • K and Cl • Ne and O • Li and Mg
The number of protons in a neutral atom is equal to the number of ….
Albert stirs a mug of hot chocolate with a metal spoon. What type of heat transfer is responsible for the spoon getting hot?
In order to determine the speed of an object, what measurements must be made?
A student connects three identical light bulbs in parallel to a dry cell. This will happens when the student removes one of the bulbs from its socket… • All the lights will go out • The other light bulbs will remain on and will be equally bright • The other light bulbs remain on, one less bright and the other the same brightness • The other light bulbs remain on, one brighter and the other less than before
That is the other bulbs will remain on and will be equally bright?
The height, length and width of a block are all different. Using this block, a student wants to test a hypothesis that frictional forces are independent of the area of contact between the block and the surface it slides on. Which method is the best to collect the data needed? • Pulling the block 10 times across the same surface adding weight each time • Pulling the block across 10 different surfaces with the largest side in contact • Pulling the block across the same surface with a different side in contact each time • Pulling the block across three different surfaces with a different side on contact each time
What is pulling the block across the same surface with a different side on contact each time?
The melting of wax is a physical change, yet the burning of wax is a chemical change. What is the essential difference between the physical change and chemical change of wax in a burning candle? • The burning wax forms new compounds, while the melting wax does not • A higher temperature is needed to burn wax rather than melt wax • Melted wax can be separated into other components while solid wax can not • Melted wax is a different phase than solid wax
What is the burning of wax forms new compounds, while the melting of wax does not.
An aluminum bar was found to have a mass of 27 g. Using water displacement, the volume was measured to be 10 mL. The density of the aluminum is …
What is the correct formula for the compound formed when calcium and oxygen combine?
Radioisotopes are commonly used as which of the following… • Cooling agents • Agriculture pesticides • Nutritional supplements • Traces in biochemical reactions
An airplane in level flight is acted on by 4 basic forces. Drag is air resistance, lift is the upward force, thrust is from the engines, weight is the force of gravity. In level flight at constant speed, which pair of forces must be equal? lift drag thrust Weight
A piece of blue paper appears blue because the paper… • Reflects all colors of light except blue • Refracts all colors of light except blue • Absorbs all colors of light except blue • Is transparent to all colors of light except blue
Which one of these energy sources is a nonrenewable energy source? • Solar • Water • Wind • Natural gas
Which of the following is most likely to contains information on a new scientific discovery? • Textbook • Current scientific magazine • Encyclopedia • Reference book on a scientific data
In normal air, which of the following substances is MOST common? • Nitrogen • Oxygen • Carbon dioxide • Carbon monoxide
The equation balanced below is… • 2Na + O2 2Na2O • Sn + 2KOH K2SnO2 + 2H2 • AsCl3 + 3H2O 3HCl + As(OH)3 • H2 + O2 H2O
What is AsCl3 + 3H2O 3HCl + As(OH)3?
To operate an electric train set, a transformer must reduce 120 volts house current to 6 volts. What is the ratio between turns on the primary (120 volts) side and the secondary (6 volt) side? • 10:1 • 20:1 • 1:10 • 1:20
Mike wants to determine the weight of some small stones. He places each of them on a scale that measures the mass of each stone. Mike’s final results should be reported in which of the following units… • Grams/cm3 • Kilograms • Liters • Newtons
Of the following which pair is MOST similar… • Ca & F • Na & Cl • Ne & Ar • Li & H
What is Ne & Ar? They are both Nobel Gases!
In an atom which force hold the protons and neutrons together in the nucleus? • Gravity • Electromagnetic force • Strong force • Weak force
Janelle is starting a research project on transistors. She goes to a Web site that has links organized by topic. In which of the following topics should Janelle begin her search? • Astronomy • Biology • Earth Science • Physics
