When a rollercoaster is going very fast down a slpoe, is that kinetic or potential energy?
The answer is: Kinetic Energy
100
Two or more substances - elements, compounds, or both - that are together in the same place but are not chemically combined.
What is a mixture.
100
What is the equation for density?
D= M/V
100
The amount of space that matter occupies.
What is volume.
100
What is a physical change?
A physical change is any change that alters the form or appearance of matter but does not make any substance in the matter into a different substance.
200
Energy an object has because of its position.
What is potential energy.
200
In this mixture, you can see the different parts.
What is a heterogeneous mixture.
200
If the mass is 10 and the volume is 5, what is the density?
The density is 2
200
If the density of an object is 2 g/cm cubed and the mass is 5 grams, what is the volume?
What is 2.5 cm cubed
200
Is dissloving sugar in water a physical or chemical change?
It is a physical change
300
The energy of matter in motion.
What is kinetic energy
300
In this mixture, you can't see the different parts.
What is a homogeneous mixture
300
The mass of a material in a given volume.
What is density.
300
How could you find the volume of an irregular object?
To find the volume, you need to first pour water into a graduated cylinder. You need to record the measurment of the water in the cylinder. Then you place the object in the cylinder and record the new measurment. You need to subtract your second measurment by your first measurment. After you have subtracted you have found the answer.
300
The proceess of liquid water changing into vapor?
What is evaporation.
400
Is energy stored or wasted in kinetic energy? Why
Wated, because you are letting out all the energy that you stored.
400
Two or more substances; frequently a liquid.
What is a solution
400
If the mass of a wooden block is 250 grams and the volume is 25 cubic centimeters, what is the density?
10 g/cubic centimeter
400
If the density of an object is 5 g/ centimeters cubed and the mass is 9 grams, what is the volume?
The volume is 1.8 centimeters cubed
400
If you melt an ice cube, why is it a physical change?
It is a physical change because there is still the original substanc of water, it has just changed state.
500
The kinetic energy of particles contributes to the ______ energy of a substance.
______ = thermal
500
Is a solution an example of a homogeneous mixture or a heterogeneous.
It is a homogeneous mixture.
500
What are the units for density?
g/cm. cubed
kg/cm. cubed
g/ml. cubed
kg/ml. cubed
500
If the density of an object is 10 g/ml cubed and the mass is 45.2 grams, what is the volume?
The volume is 4.52 ml cubed
500
What are some examples of phyical changes.
Bending, crushing, breaking, chopping, and dissolving are some examples of physical changes.