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Physical Science
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Questions (1,570)
1. You observe two beakers containing clear liquid and ice cubes. In the first beaker, the ice cubes are floating. In the
4 answers
asked by
Crystal
1,293 views
The gallium in the image is melting in the person's hand. Which changes will occur on a microscopic level?
O The gallium atoms
13 answers
asked anonymously
136 views
A fisherman in a boat is drinking a cup of hot coffee. The large lake below his boat is full of cold water. Which statement is
1 answer
asked by
Anonymous
393 views
What is the mass of water that results from combining 2.0 g of hydrogen with 16.0 g of oxygen?
14.0 g (I'm thinking this.) 16.0 g
15 answers
asked by
Anonymous
3,264 views
While on vacation, Kevin went for a swim in a nearby lake. Swimming against the current, it took him 8 minutes to swim 200
5 answers
asked by
jason
1,435 views
Why did a portion of the tabletop get cold when Natasha placed her cold drink on the table? (1 point)
The table’s molecules
4 answers
asked by
Connie
2,411 views
Which scenario correctly illustrates heat?(1 point)
Responses cold person gets even colder when they sit in a sauna with a
3 answers
asked by
HAELP
574 views
Explain why the potential energy increases when ice starts to melt and becomes liquid water.
My answer is, While the ice melts
4 answers
asked by
help
1,396 views
jasmine adds vary amounts of ice to samples of water. which conclusion can you draw from her experiment
11 answers
asked anonymously
356 views
A student drops substance A into substance B. What will happen?(1 point)
Responses A. Both substances will reach 50 degrees
4 answers
asked anonymously
104 views
An iron block with a temperature of 250 degrees Celcius is placed into a container of water with a temperature of 50 degrees
2 answers
asked by
Memes Goofy ahh ohio
101 views
What is the measure of the amount of matter in an object?
31 answers
asked anonymously
128 views
Consider any ocean wave. What is the relationship between an ocean wave and the energy of that wave?
A. Wave energy increases
4 answers
asked by
Gelo
131 views
Which of the following phrases can describe an endothermic process?
A. A system gives off energy as it cools down. B. Energy is
4 answers
asked by
Morgan
1,694 views
What is the irradiance of the sun dependent on?(1 point)
Responses the wavelength of the radiant energy it emits the number of
2 answers
asked by
wiggle
71 views
Use more dense than, less dense than, or the same density as to complete the following statement about density
Styrofoam is
2 answers
asked anonymously
56 views
A student wants to model the physical weathering of rock. Which activity could the student perform?(1 point)
Responses Place
2 answers
asked anonymously
180 views
Joshua fills one large container with cold water Then he fills a small container with hot water and red food coloring, and seals
5 answers
asked anonymously
155 views
physical science a, chemical reactions unit test 1-18 answers please connections academy 10th grade
1 answer
asked by
alex
207 views
a cup of coffee, a 10 gallon aquarium, and a bottle of ginger ale were on the same table. on which container was there the
4 answers
asked by
Samantha
471 views
which of the following best describes the movement of an object at rest if no outside forces act on it?
help this is science 8 B
33 answers
asked by
Ms. Impala
6,499 views
Air pressure doesn't crush everything underneath it because
A. air pressure is hypothetical and not a real force. B. air pressure
13 answers
asked by
Prisila
1,012 views
Jasmine adds varying amounts of ice to samples of water. Which conclusion can she draw from her experiment?(1 point)
10 answers
asked by
Naruko Uzumaki
102 views
which has greater volume?
a) 1.0 kg of feathers or 1.0 kg of lead b) 100 g of gold or 100 g of water c) 1.0 L of copper or 1.0 L
4 answers
asked by
Jack
2,624 views
Jasmine adds varying amounts of ice to samples of water. Which conclusion can she draw from her experiment?(1 point)
Responses As
7 answers
asked by
Noobz
81 views
Which process is an example of a chemical change?
A metal railing rusting in damp weather alcohol evaporating from a cotton swab
5 answers
asked by
lydia
3,663 views
What is the increase in temperature necessary for a hydrogen gas, initially at 0°C, to increase its volume by 5% at constant
4 answers
asked by
kris
1,689 views
A student drops a rock in a pond and notices that her reflection in the water becomes less clear. Which statement best explains
4 answers
asked anonymously
485 views
Turning on the switch in a flashlight starts a chemical reaction in the batteries. The chemical energy is turned to light energy
16 answers
asked by
Anonymous
5,304 views
How does a phase change from solid to liquid occur in a substance?(1 point)
A. Heat energy is released from the substance,
5 answers
asked by
Chicken Nugget
4,118 views
What is the amount of energy of calories to heat 8.5g of water from 15 C to 36 C?
I think you take 8.5g x 21 degree C, but then I
5 answers
asked by
Connie
8,946 views
When ice at 0C melts to liquid water at 0C, it absorbs 0.334 kj of heat per gram. Suppose the heat needed to melt 31.5 g of ice
4 answers
asked by
Capacino
3,463 views
Why does the density of gas in a hot air balloon decrease as the gas is heated?
A. The mass of gas decreases as temperature
5 answers
asked by
erika
2,005 views
The atmospheric pressure is 764.7 torr. A gas sample is placed in a flask attached to an open-end mercury manometer. The height
6 answers
asked by
Anonymous
3,538 views
A scientist measures the boiling point of saltwater in a lab at an altitude of 800 feet above sea level. A second scientist
5 answers
asked by
HELP ME PLEASE
1,274 views
Which of the following best applies to the pressure of a gas?
A. It is the force per unit volume. B. It decreases with
5 answers
asked by
Cortney
2,422 views
A tsunami, a great ocean wave, travels a distance of 7.2x10^6m in 2.88x10^4 what is the average speed of tsunami?
5 answers
asked by
Brad
1,622 views
Which of the following elements would have the largest third ionization energy: K, Ca, Ga?
What is third? Thanks in advance.
7 answers
asked by
sh
2,144 views
When the solid and liquid phases are in equilibrium, which phase, solid or liquid, contains the most amount of energy (kenetic
4 answers
asked by
Michelle
2,557 views
Which of the following contains more thermal energy?
A. Water at 100°C B. Ice at 0°C C. Water at 0°C D. Steam at 100°C I
5 answers
asked by
Morgan
1,004 views
What the force of attraction between earth and objects on earth surface pesanteur..I need it English
4 answers
asked by
jaseanturner1017
1,408 views
As a purity check for industrial diamonds, a 22 - carat diamond (1 carat = 0.2g) is heated to 63 degrees C and immersed in 26g
4 answers
asked by
Jon
1,359 views
Spontaneity of Solid Phase Change
Two crystalline phases of white phosphorus are known. Both contain P4 molecules, but the
5 answers
asked by
N
1,025 views
Forces that Change Motion Quick Check - Physical Science A
1-Which of the following best describes the sum of all forces acting
4 answers
asked by
korinthia
709 views
What is Physical Change?
D. A change that does not change the chemical identity of a substance A piece of paper is torn into
4 answers
asked by
child 17
706 views
A copper kettle contains water at 24.2 °C. When the water is heated to 87.3 °C, the volume of the kettle expands by 7.34 x
4 answers
asked by
RM
2,210 views
a rocket moves through outer space at 11,000 m/s at this rate how much time would be required to travel the distance from earth
4 answers
asked by
cindy
2,275 views
A hypothetical metal has a simple cubic crystal structure. If its atomic weight is 70.6
g/mole and the atomic radius is 0.128 nm,
3 answers
asked by
redone
805 views
Cobalt-60 is a strong gamma emitter that has a half-life of 5.26 yr. The cobalt-60 in a radiotherapy unit must be replaced when
4 answers
asked by
hannah
3,267 views
The density of diamond is 3.51 g/cm3 and the density of lead is 11.3 g/cm3. If equal masses of diamond and lead are transferred
4 answers
asked by
Netta
2,937 views
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