<h3>
Answer:</h3>
B. The object moves some distance
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Explanation:</h3>
- Work is the product of force and distance.
- Work is done on an object when a force is applied on the object making it move some distance.
- For example; If a mason applies a force of 5 N to move a stone at a distance of 10 m, then the work done will be 50 Joules.
- Applying a force on an object without making it move some distance then there is no work done.
- Consider a boy pushing a wall really hard and the wall doesn't move even for a single inch, this means there is no work done.
Answer:
Increasing the temperature of the copper made the final temperature increase and decreasing the temperature of the copper made the final temperature decrease. ... How does changing the initial mass of the copper affect how much heat energy it has? The more copper, the more heat energy.
Explanation:
A gas can move around freely while a solid is hard and can’t move around freely
Answer: Scientific reasoning
Explanation:
A scientific reasoning can be defined as the justification which connects the evidence with that of the claim and it rules out all those claims that are not supported by any evidence. It explains the fact that how evidence can support a claim and scientifically acceptable conclusion can be drawn. An argument is always based on one or more claims which can either be true or evidentially proved.
Answer:
B - To increase the rate of the reaction
Explanation:
Catalysts speed up the reaction without being reactants or products, so aren't used up in the reaction.
