How fast is a car going if it travels 70km in 3 hours?
23.33 km/hr
100
What would cause more force, a 100,000 kg train accelerating at 5 m/s^2 or a 10 kg butterfly flying at a speed of 10,000 m/s^2. How much force does each have
the train at 500,000 N, the butterfly only had 100,000 N of force.
Write a hypothesis statement using the correct for
It must include If......then
200
Draw a bond between Na and Cl. Show before and after.
must show transfer of electrons. Must have charges.
200
A comet is cruising through the solar system at a speed of 50,000 kilometers per hour for four hours. What is the total distance traveled by the comet during this time?
200,000 kilometers
200
What is the name of the force that apposes movement?
Friction
200
where are periods and groups on a periodic table, and what do they tell us?
Periods are horizontal, they tell us the number of shells, and groups are the vertical columns, they tell us the number of valence electrons
200
What is the dependent and independent variable?
Dependent- What you measure
Independent- what variable you are changing
300
Draw a bond between H2 O. What type of bond is this?
Covalent.
300
If you are going 60 mph for one hour how far did you go?
60 miles
300
Give an example of newtons three laws.
1- Inertia
2- F=MA
3- for every action there is an equal but opposite reaction
300
What type of elements for ionic bonds, give me an example of a compound and their charges.
Metal and non-metal.
300
Why is it so important to have a control in an experiment?
So that you have something to measure against.
400
Draw an electron dot diagram showing the bond between Iodine and oxygen
Covalent. 2 iodines and 1 oxygen with single bonds.
400
A car moves from O m/s to 150 m/s in 5 seconds. What is its acceleration?
30 m/s^2
400
What type of force produces motion?
Unbalanced
400
What would be the charge of an ion of Phosphorus?
-3
400
What is a theory?
A well tested explanation for a natural phenomenon. The key is that it is well supported by experimentation.
500
balance the following equation. _____C2H5OH = O2 ---->CO2 + H2O
decomposition
500
You want to see how fast a penny can go before it hits the ground when you drop it off the school. It took 5 seconds for it to hit the ground.
A= Vf-Vi/T 9.8 m/s^s X 5 = 49 m/s
500
Draw a force diagrams (vectors) of two people pulling a rope, one with 10N of force, and the other with 7 N of force. Also draw the resultant.
Must see picture. Resultant will be 3 N in the direction that the 10N force was pulling