Question

after watching the video, answer these 4 questions below. if you missed questions on the unit 0 vocabulary quiz last week, this assignment can cover for it: 1) in your opinion, does light have mass? 2) if you were doing on experiment on insects like bees or mosquitos, what would be a variable you use in the experiment? give an example from the movie. 3) in the experiment from question #2, would be an example of a constant in that experiment? explain why it is a constant. 4) if you needed to measure the speed of a lightning bolt, what tool would you use to make sure your answer was valid? attachments mysteries of the unseen wo... all files saved offline your answer assigned type your answer turn in

Explanation:

Step1: Answer question 1

Light is made of photons. Photons have no rest - mass. But they have energy and momentum. So, in a non - rest context, light can have an effective mass - like property due to its energy (from $E = mc^{2}$). But in the traditional sense of rest - mass, light has no mass.

Step2: Answer question 2

A variable in an insect experiment could be the type of flower (if studying insect - flower interaction). For example, in the movie, if bees are observed, the type of flower they visit could be a variable. Different flowers may have different scents, colors, or nectar amounts which could affect bee behavior.

Step3: Answer question 3

A constant could be the temperature in the experimental area. It is a constant because if the temperature is kept the same throughout the experiment, it won't introduce variability in the insects' behavior due to temperature changes. So, it helps to isolate the effect of other variables (like the type of flower).

Step4: Answer question 4

To measure the speed of a lightning bolt, a high - speed camera and a known distance marker could be used. By recording the time it takes for the lightning to travel a known distance, the speed can be calculated using the formula $v=\frac{d}{t}$. The high - speed camera ensures accurate time measurement for the fast - moving lightning.

Answer:

1. Light has no rest - mass, but can have an effective mass - like property due to its energy.
2. A variable could be the type of flower. For example, in the movie, the type of flower bees visit.
3. A constant could be the temperature in the experimental area. It is a constant because it won't introduce variability in insect behavior due to temperature changes.
4. A high - speed camera and a known distance marker can be used to measure the speed of a lightning bolt.