Potential Energy of a System Quick Check - Physical Science B - Unit 4 Lesson 5 - 9th Grade
Which is the equation for an object’s potential energy?
ANSWER - PE = mgh
In a baseball game, Joseph hits a ball to the outfield. When does the ball have the most potential energy?
ANSWER - when the ball reaches its highest point
The roof of an apartment building is 58 meters high. A water tank on the roof has a mass of 38,000 kilograms. What is the potential energy of the water tank?
ANSWER - 21,599,200 J
Which statement best describes an object’s potential energy?
ANSWER - The object’s mass, gravity, and height determine its potential energy.
Which scenario shows how to use collaborative learning to explore potential energy?
ANSWER - Members of a team work together to create a plan, and then members choose different tasks to carry out the plan.
They then come together to discuss their findings and share their results.
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Step 1: The equation for an object's potential energy is PE = mgh, where PE represents potential energy, m represents the mass of the object, g represents the acceleration due to gravity, and h represents the height of the object.
Step 2: The ball has the most potential energy when it reaches its highest point. This is because potential energy is directly proportional to the height of an object.
Step 3: To calculate the potential energy of the water tank on the roof, we use the equation PE = mgh. Substitute the given values: m = 38,000 kg and h = 58 m. Calculate: PE = (38,000 kg)(9.8 m/s^2)(58 m) = 21,599,200 J.
Step 4: An object's potential energy is determined by its mass, gravity, and height. These factors interact to determine the amount of potential energy an object possesses.
Step 5: Collaborative learning can be applied to explore potential energy by having team members work together to create a plan. After creating the plan, team members can then divide tasks among themselves to carry out the plan effectively. This allows for a collaborative and interactive learning experience.
To find the potential energy of an object, you can use the equation PE = mgh, where "PE" represents potential energy, "m" represents the mass of the object, "g" represents the acceleration due to gravity, and "h" represents the height or vertical distance of the object from a reference point.
In the case of the baseball game, the ball has the most potential energy when it reaches its highest point. This is because potential energy is directly proportional to the height of the object. So, at the highest point of its trajectory, the ball has maximum potential energy.
To calculate the potential energy of the water tank on the roof of the apartment building, you would need to know its mass and the height of the roof. In this scenario, the mass of the water tank is given as 38,000 kilograms, and the height of the roof is 58 meters. Plugging these values into the equation PE = mgh, you can calculate the potential energy of the water tank as 21,599,200 joules.
An object's potential energy is determined by its mass, gravity, and height. These factors interact to determine the amount of potential energy stored in the object. As the mass or height increases, the potential energy increases as well. Similarly, increasing the strength of gravity will also result in increased potential energy.
Collaborative learning can be used to explore potential energy by having team members work together to create a plan and then assign different tasks to each member to carry out the plan. This collaborative approach allows individuals to share their knowledge and skills, discuss ideas, and problem-solve together, promoting a deeper and more comprehensive understanding of potential energy.