Final answer:
The Physics questions pertain to reference frames, the metric system, matter and energy relationships, calculating weight, and using Earth as a frame of reference for most activities.
Step-by-step explanation:
The student is asking questions related to the field of Physics, specifically to concepts of motion, reference frames, and measurements. Here are the answers to the questions provided:
- On a train ride cross-country, the trees, buildings, and people appear to be speeding by the window because the train is your frame of reference.
- Scientists use the metric system for making measurements.
- Physical science studies the relationships between matter and energy.
- To find out what one tyrannosaur weighs if 6.6 of them weigh 30,000 kg, you would divide the total weight by the number of tyrannosaurs, resulting in approximately 4,545 kg per tyrannosaur.
- For most activities, the Earth makes a handy frame of reference.