An interactive test for Prep 3 on acceleration and graphic representation of motion. In this lesson you have learned that: 1- The (distance-time) graph for an object moves with a regular speed is represented by a straight line passing through the origin point. 2- The distance (d) is directly proportional to the time. 3. The ratio (d/t ) is a constant value represents the regular speed. 4- The (speed-time) graph for an object moves with regular speed is represented by a straight line parallel to the time axis. Acceleration: It’s the change of an object speed in one second in a specific direction.(OR It’s the rate of change of speed) Notes: 1- When the car's speed increases by time, the movement described as "accelerating motion" or "positive acceleration". (Because the final speed is greater than the initial speed). 2- When the car's speed decreases by time, the movement described as "decelerating motion" or "negative acceleration...
Dear students, this is a quiz about the characteristics of matter. you have learned that: To calculate the density of a material you should know its mass and volume. Density = Mass / Volume. Equal masses of different materials have different volumes because they have different densities. Description of the quiz: The quiz includes questions about properties of light. The result of the exam will appear at the end of the exam. The right and wrong responses will appear to help you revise your mistakes. You can do the quiz multiple times as you wish to train your self. Now try to solve the quiz CLICK HERE
Dear students, these are two quizzes about the three states of matter. you have learned that: There are three states of matter: solid state, liquid state and gaseous state. Solids have definite volume and definite shape . Solids such as: ice – stone – iron – sugar – table salt – gold – silver. Liquids have definite volume and indefinite shape (they take only the shape of their container). Liquids such as: water - oil - milk - kerosene - alcohol. Gases have indefinite shape and volume (they take the shape and volume of their container) Gases s uch as: oxygen – nitrogen – carbon dioxide – water vapour Description of the quiz: The quiz includes questions about matter states. The result of the exam will appear at the end of the exam. The right and wrong responses will appear to help you revise your mistakes. You can do the quiz multiple times as you wish to train your self. Now try to solve the quizzes QUIZ 1 QUIZ 2
Comments
Post a Comment
please leave your comment here
اكتب تعليقك هنا