The three parts of the atom are protons, neutrons, and electrons.
100
What is the name of clusters of billions of stars?
A galaxy is a cluster of billions of stars.
200
What is the density of a cube with a volume of 4mL and a mass of 16 grams?
The density is 4 g/mL
200
What is velocity equal to?
Velocity is speed and direction.
200
What direction does gravity act in?
Gravity points down.
200
Which two parts of an atom are the same size and are in the same location?
Protons and neutrons are the same size and location.
200
What is the sun?
The sun is a star.
300
How can you tell if an object floats or sinks?
It has a density of less then 1 g/mL.
300
What is constant speed?
Constant speed is unchanging speed or a straight line on a line graph.
300
If someone pushes an object 4N to the left and someone else pushes it 6N to the right are the forces balanced or unbalanced? (extra 50 points if you can say what the net force is)
The forces are unbalanced (The net force is 2N to the right).
300
What type of bond happens when electrons are shared?
A covalent bond is the type of bond that happens when electrons are shared.
300
What color are hot stars?
Hot stars are blue.
400
How can you tell if something sinks?
It's density is greater than 1 g/mL.
400
How can you tell which segment goes fastest on a distance-time graph?
It stands up the most (It has the highest slope).
400
What direction does friction and air resistance act in?
Friction and air resistance act in the opposite direction of movement.
400
What type of change means that the atoms are changed?
A chemical change is one that means the atoms are changed.
400
Where is the asteroid belt located?
The asteroid belt is between mars and jupiter.
500
Will a rubber duck with a mass of 20grams and a mass of 5mL float or sink?
It will sink. (It's density is 4 g/mL).
500
What is average speed equal to?
Average speed equals total distance over total time.
500
When the mass gets bigger, what happens to the amount of force needed to move the object?
When the mass gets bigger, the amount of force needed to move the object gets bigger.
500
When the temperature increases from cold to hot, give the order of the three states of matter.
It goes from solid to liquid to gas.
500
What is the name of the objects in space also known as a dirty snowball? (Bonus 50 points: why are they called this?)
The dirty snowballs are comets. (Because they are made of ice and dust).