The metric unit for Force (what forces are measured in)
What are Newtons
As a candle burns, the chemical energy stored in the wax is turned into ____________ or __________ energy
What is heat or light energy?
Tell me which of Newton's Laws each statement is describing A) An object in motion stays in motion B) For every action there is an equal and opposite reaction C) Force equals mass multiplied by acceleration (F=MA)
What is A) 1st B) 3rd C) 2nd?
A push or a pull
What is force
A substance made of only one thing
What is an element (atom)?
The variable that you change in an experiment
What is independent (manipulated) variable?
If each car goes at the same speed, which car will have the most force? Why?
Car #1 1100 kg
Car #2 1300 kg
Car #3 1500 kg
What is Car #3?
What is because Car #3 is the heaviest, and heavier things that go at the same speed have more total force!
What is 78% Nitrogen and 21% oxygen?
Why should you always do multiple trials in a science experiment?
What is to reduce bias and make the results more accurate?
If a force is the same but mass is decreased then acceleration is ______________ (increased/decreased)
What is increase
What are the 3 parts of an atom and what type of charge do they carry?
Neutron (0) Proton (+) Electron (-)
Write a possible measurement unit for the following: Velocity Acceleration Force Distance Volume
What is m/s
cm/s/s
N
km
L
An object is pushed East with 15 Newtons and pulled East with 13 Newtons What is the total (net) force acting on the object?
What is 28 Newtons?
In which process is oxygen used to release energy from stored food (energy storage molecules)? What are the products of this reaction?
What is respiration?
What is Water and Carbon Dioxide?
Oxygen + Glucose = Energy + Water + Carbon Dioxide
How would you know a chemical reaction occurs? Give an example of a chemical reaction Give an example of a physical change
What is a new substance was created Paper burning Metal rusting melting crushing