Answer:
longitudinal waves
Explanation:
longitudinal waves are waves in which the vibration of particles is parallel to the direction of the wave motion
An orange is placed on a table in a completely dark room, without any source of light. Which of the following choices correctly describes what an observer will see as he looks in the direction of the orange?
A The orange will be seen by the observer immediately, but it will be very dim.The orange will become brighter as the observer's eyes adjust to the darkness.
B The orange will not be seen at all because light is not bouncing off its surface.
C The orange will only be seen after the observer's eyes adjust to the darkness.
D The orange will be seen by the observer immediately, but it will be very dim.
Answer:
Observation is essential in science. Scientists use observation to collect and record data, which enables them to construct and then test hypotheses and theories. Scientists observe in many ways – with their own senses or with tools such as microscopes, scanners or transmitters to extend their vision or hearing
The basic idea of a hypothesis is that there is no pre-determined outcome. ... A key function in this step in the scientific method is deriving predictions from the hypotheses about the results of future experiments, and then performing those experiments to see whether they support the predictions
1. How many muscles are in the human body?
2.What diseases affect the muscular system?
3. What are the functions of the muscular system?
4.what are two types of muscle fibre?
