Answer:
Matter is the correct answer for this question.
I did this test recently and it was correct.
Explanation:
Answer:
The thickness of sponge is the dependent variable in this investigation
Explanation:
This is because in the investigation, the amount of mass is the property to be varied while the thickness of the sponge is the property to be checked.
The thickness of the sponge is dependent on the amount of mass placed on it, so the thickness of the sponge depends on the mass.
Thus, the thickness of the sponge is the dependent variable in this instance while the amount of mass is the independent variable in this investigation.
In this scientific investigation about the relationship between the thickness of a sponge and the mass placed upon it, the 'dependent variable' is the sponge's thickness, and the 'independent variable' is the mass applied. The hypothesis may be that there's an exponential relationship between the mass and the sponge's thickness.
In the given scientific investigation, the dependent variable is the thickness of the sponge. This is because the thickness is the aspect of the experiment that changes (or is measured) based on the manipulation of another variable, which in this case is the amount of mass placed on top of the sponge, known as the independent variable. The investigator has control over the independent variable and observes whether changes to it cause a reaction or change in the dependent variable. In other words, the thickness of the sponge 'depends' upon the mass placed on it during the experiment. A possible hypothesis for this experiment may be that the thickness of the sponge decreases (get thinner) as more mass is placed upon it, suggesting an exponential relationship between the mass and the sponge's thickness.
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Answer :
1) Luster → the shininess of a material
2) Freezing point → temperature at which a liquid becomes a solid
3) Viscosity → the measure of a substance's resistance to flow
4) Solubility → ability to dissolve in another substance
5) Ductility → able to be pulled into a wire
Explanation :
Luster : It is defined as the material which has the shining property.
Freezing point : It is the temperature at which the phase changes from liquid state to solid state at low temperature.
Viscosity : It measures the resistance of the liquids to flow .
Solubility : It is defined as the ability of a substance (solute) to dissolve into a liquid (solvent).
Ductility : It is defined as the ability of a metal into a thin wire without breaking.
The physical properties are correctly matched as: Luster corresponds to the shininess of a material, freezing point is the temperature at which a liquid becomes solid, viscosity is the measure of a substance's resistance to flow, solubility is the ability to dissolve in another substance, and ductility refers to a substance's ability to be pulled into a wire
The correct matches for the physical properties and their descriptions are as follows:
It's crucial to understand these properties in chemistry, as they help us identify and characterize different substances.
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B. retrograde motion.
C. Kepler's first law of motion.
D. eccentricity.
B. The force does not result in displacement
C. The force and displacement are perpendicular to each other
D. The force and displacement are in the same direction
Answer:
Work is said to occur when a force is able to cause displacement of an object in the direction of the applied force. It is given by the scalar product of force and displacement.
W = F.s = F s cos θ
Thus, no work is being done when no force is applied ( ∵ F = 0, W = 0) or the force does not result into displacement (∵ s = 0, F = 0) or when the force and displacement are perpendicular to each other (∵ θ =0, cos θ =0, W =0).
Answer: D. The force and displacement are in the same direction
Explanation: The guy above me is trying to hard to put information into his answer...
b. a line along which air pressure is constant
c. a region in which the weather is not changing
d. a symbol on a weather map showing wind direction
Answer:
B.a line along which air pressure is constant
Explanation:
i took the quiz and got it right