What are the two types of cell
Ans- Prokaryotic cell and eukaryotic cell
I put a Pop-Tart in the toaster. Electrical energy is transformed to thermal
energy to make my Pop-Tart hot. Based on the Law of Conservation of Energy,
once my Pop-Tart starts to cool, is energy lost?
Ans- Energy canno...
I put a Pop-Tart in the toaster. Electrical energy is transformed to thermal
energy to make my Pop-Tart hot. Based on the Law of Conservation of Energy,
once my Pop-Tart starts to cool, is energy lost?
Ans- Energy cannot be created or destroyed
At a constant velocity, a 5kg bag of cement is pulled straight up a 7m wall. How
much work is done by the puller? (Gravitational pull is 9.8m/s2, W(J)=F(N)*D(m)
Ans- 343J
, What are the three phases or states of matter?
Ans- Liquids solids and gas
Iron+ Oxygen->Iron Oxide (Rust)
2Fe+30₂ -> Fe₂O₃
Iron Oxide, formed from Iron and Oxygen, is a new:
Ans- Compound
A fish swims through the water by using its fins to push water backwards.
Pushing water backwards propels the fish forward through the water. This most
nearly fits which of Newton's Laws?
Ans- Newton's third law. For every action, there is an equal and opposite
reaction
Researchers want to conduct a study using random sampling. What is random
sampling?
Ans- Individuals are randomly selected. Every individual has the same
probability of being selected
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