SchoolTrainer Blog :: Category ‘Science’

You roll a basketball and a bowling ball directly towards each other at the same speed. Predict what will happen to each after the two collide.

Solution:

Let’s assume that this is an “elastic collision of unequal masses” (see http://en.wikipedia.org/wiki/Elastic_collision, which will help you visualize this). Let’s also assume that the weight of the basketball is 1 pound and the weight of the bowling ball is 2 pounds, and that the basket ball is traveling from east to west at a speed (v) of 9 miles per hour, and the bowling ball is traveling west to east at 9 miles per hour.

After the collision the bowling ball reverse direction and travel at 3 miles per hour, and the basketball will reverse direction and travel at 15 miles per hour.

Soluton:

We found the following picture of what’s inside a flower at

http://www.eduplace.com/science/hmxs/ls/pdf/2rs_1_3-3.pdf

Solution:

Scientific experiment has three types of variables: independent, dependent and controlled.

Please click on this link to get details:

http://www.sciencebuddies.org/mentoring/project_variables.shtml

Solution:

A good absorber of radiant energy, like a black surface, sends to get hot. If it is a poor emitter, that means it will remain hot for a long time. Therefore, an object that is both a good absorber of radiant energy and a poor emitter would tend to be hotter than its surroundings.

Science makes your outlook towards life a little different than other subjects. Studying this subject opens many doors for you to enlighten your future. In case you could not figure out how to prepare for your science exam well, you need to develop the right temperament first. Science is about being practical, so get ready to test your brains through this labyrinth.

First and foremost, start preparing for the Science exam in advance. The sooner you start, the better your chances of performing well in the exam as you feel more confident as the exam day approaches. Complete the theory part thoroughly; attend the classes regularly at school. If you miss some lecture then try asking some of your classmates to cover up or simply ask your teacher to help you out. Studying with someone can be a good option sometimes so you can synchronize your work schedule with your friend.

Science is about being practical and not just being a theoretician. So attend all the lab sessions regularly and try to perform all the experiments by yourself to understand the phenomena better and it will last longer in your memory as well. Do not skip any assignments as there is always a good chance to encounter something similar in the exam. Now prepare for your Science exam with a cool and practical approach and see the magic unveil the sweet fruit of good grades.

Enroll in our Online Science Tutoring program to get help with Science homework, assignments and test preparation.