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Air Pressure 15 N. In which direction will these balloons travel?. Wind gust 15 N. Lift 30 N. Gravit y 15 N. ANSWER: The balloons will move to the left. You notice that your plate is warm underneath your hot dinner. Which statement describes why your plate is hot? - PowerPoint PPT Presentation
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Air Pressure 15 N
Lift 30 N
Wind gust 15 N
Gravity 15 N
In which direction will these balloons travel?
ANSWER:
The balloons will move to the left
You notice that your plate is warm underneath your hot dinner. Which statement describes why your plate is hot?
A. Radiation- because your hot food is sending heat waves to the plate
B. Insulation- your plate is made to hold in heat
C. Conduction- because your hot food is touching the plate
ANSWER:
C. Conduction- Because your hot food is touching your plate
This compound is made up of different elements. Which elements are represented?
CaCO3
ANSWER:Calcium, Carbon, Oxygen
List these substances in the correct position from most dense to least dense. They each have a volume of 5 ml
Substance Mass Oil 6 gSoda 25gVinegar 15gCorn syrup 30 g
ANSWER:
Corn Syrup, Soda, Vinegar, Oil
When you stop to put fuel in your car, what energy transformation is represented?
A. Electrical to mechanicalB. Chemical to nuclearC. Mechanical to chemicalD. Chemical to mechanical
ANSWER:D. Chemical to mechanical
During a demonstration, your teacher pushes some books.
Demonstration 1. Your teacher pushes 1 book with 2N of forceDemonstration 2. Your teacher pushes 1 book with 4 N of forceDemonstration 3. Your teacher pushes 2 books with 4 N of force
Which 2 demonstrations will cause the books to move at the same speed?
ANSWER:Demonstrations 1 and 3 will move at the same speed
( Each book has 2N of force pushing on it)
What is occurring to the M&Ms?
A. Heat is transferring to the M&Ms by convectionB. Heat is transferring from the M&Ms by conductionC. Heat is transferring to the M&Ms by conductionD. Heat is transferring to the M&Ms by convection
ANSWER:C. Heat is transferring to the M&Ms by conduction
Which non metal is the most dense?
Non- Metal
Mass Volume Density
Wood 15g 3 cm3
Sulfur 11g 3 cm3
Chalk 5g 3 cm3
Cardboard 6g 3 cm3
ANSWER:Wood is the most dense
The image below shows that when sodium ( Na) a metal, is combined with chlorine ( Cl) a poisonous non-metal, a white solid is formed.
Which statement is true?
A. The properties of substances that react chemically stay the same when a new substance is formed
B. The properties of substances that react chemically are different from the properties of the original substances
ANSWER:
B. The properties of substances that react chemically are different from the properties of the original substances
Zack and Billy decide to race to see who can run around the outside of the school the fastest. Each lap around the school is 200 meters. This is their data:
Person Number of laps around the school
Time ( Minutes)
Zack 2 4Billy 6 5
Which statement is true?
A. Billy was faster than Zack by 140 m/minB. Zack was faster than Billy by 140 m/minC. They ran the same speed
ANSWER:
B. Zack was faster than Billy by 140 m/min
What happened between 5 and 10 seconds on this graph?
Distance
A. The object is acceleratingB. The object is deceleratingC. The object has stoppedD. The speed is decreasing
ANSWER:
C. The object has stopped.
What type of heat transfer is occurring in these pictures?
ANSWER:
Convection
Penguins stand close together to keep warm, and share body heat. Which direction will the body heat travel?
12
3
Penguin 1 : 74 degrees
Penguin 2: 92 degrees
Penguin 3: 79 degrees
A. From Penguin 1 to Penguin 2B. From Penguin 3 to Penguin 2C. From Penguin 2 to Penguin 3
ANSWER:
C. From Penguin 2 to Penguin 3
When we use pulleys, it helps to decrease the amount of force that is used because it:
A. Makes to person work harderB. Swings the object directly to usC. Requires more work due to installing the pulleysD. Increases to amount of distance from the person lifting and
the object
Answer: Increases to amount of distance from the person lifting and the object
The elements that are highlighted in yellow all are:A. Metalloids that are insulatorsB. Metals that are insulatorsC. Nonmetals that are shinyD. Nonmetals that are insulators
Answer: Nonmetals that are insulators
• There are two unknown substances that the students have to test in science class. How would the determine if the substance is an element?
A. If the substance floats or sinks in waterB. The total amount of atoms in the substance.C. The total amount of different atoms in the substance.D. If the substance can burn when in contact with fire
Answer: The total amount of different atoms in the substance
• A boy comes in form playing in the snow on a snowy day. The boy warms himself by sitting by the fireplace, this is an example of:
A. Conduction B. RadiationC. ConvectionD. Burning
Answer: Radiation
What would be a correct statement to infer about the elements in the table above?A. They can only be made in a lab with a scientistB. These elements are only found on the EarthC. The elements are rare on the Earth and in the atmosphereD. All of the elements are used to make metal
Elements Mass of the Element(parts per million)
Hydrogen 830,000
Helium 343,000Oxygen 11,000
Carbon 3,620
Iron 2,090
Boron 960Gold 890
Neon 520
Answer: The elements are rare on the Earth and in the atmosphere
A student is researching minerals and must determine the identity of the substance. The mass of the substance is 21 grams and the volume is 3cmᶟ. What is the identity of the mineral?A. AmethystB. RubyC. GarnetD. Adamite
Substance Density
Amethyst 5g/cm³
Ruby 7g/cm³
Garnet 3.5g/cm³
Adamite 2.5g/cm³
Answer: Ruby
• A student has on a propeller hat and wants to show her mother how it works. The propeller has a rubberband on it. She spins it several times to twist the rubberband, which statement best describes the purpose of the rubberband.?
A. It transfers sound energyB. It has potential energyC. It has kinetic energyD. It transfers kinetic energy
Answer: It has potential energy
• Which one of these elements is an element according to the chart above?
A. 1 and 3B. 2C. 3 and 1D. 1, 3 and 4
1 O₃2 O3 H₂O
4 CO
Answer: 2
• A limited number of elements on the periodic table are present in:
A. EarthB. Earth, all living matter, oceans, and the atmosphere onlyC. The atmosphere and the Earth onlyD. Earth, all living things and the ocean only
Answer: Earth, all living matter, oceans, and the atmosphere only
• The information found on the square above is an:• A. mixture• B. Element• C. Compound• D. Letters representing a compound
Answer: B
• Which direction will the heat flow?A. From the hand to the fireB. From the burning candle to the fingerC. From the finger to the burning candleD. From the fire to the burning candle
Answer: From the burning candle to the finger
A student has a green block of an unknown substance and wants to find out what is based on its density. The mass of the block is 32 grams and the volume is 4 cm3. What is the block made of?
Material Density
Glass 1.0 g/cm3
Silver 80.0 g/cm3
Calcite 8.0 g/cm3
Gypsum g/cm3
Answer
Calcite8.0 g/cm3
Pulling a rubber band band before releasing it is transferring what kind of energy?
Answer
Potential Energy
According to the data table, the __________ force is applied over a __________ distance.
Length of inclined plane Force (N)
2 meters 500 N
4 meters 250 N
6 meters 125 N
8 meters 62.5 N
Answer
According to the data table, the less force is applied over a greater distance.
A toy car is traveling a distance of 145 cm in 5 seconds. What was the car’s average speed?
**DON’T FORGET UNITS**
Answer
29 cm/s
You, the Earth, and all living things are composed of-A. The metals on the periodic tableB. All of the elements on the periodic tableC. The nonmetals on the periodic tableD. A very limited number of elements on the
periodic table
Answer
D. A very limited number of elements on the periodic table
Because we are mostly made of only 8 eight elements
Which is a compound?
SaltIron
Gold
IronSilver SaltGold
Iron
Answer
Salt
Is the following material most likely a metal, nonmetal, or metalloid?
Sample Test
Appearance Blue, Crystalline
Conducts electricity? No
Density 2.4 g/cm3
Malleability Shatters when hit with hammer
Answer
Nonmetal
Luis is jumping on a pogo stick. Where does he have both kinetic and potential energy? At the highest point, lowest point, or in the middle of both?
Answer
In the middle or halfway point of the jump
Which is evidence that a chemical change occurred?A. The mass decreasesB. The temperature decreasesC. The state of matter changesD. The color does not change
Answer
B. The temperature decreases
What energy transformation is occurring when an electrical pencil sharper moves and makes a loud noise while sharpening a pencil?
_________ _________ _________
Answer
Electrical Mechanical Sound
A campfire being used while camping is using which energy transformations?
_________ _________ _________
Answer
Chemical Thermal Light