A student drops the same 10 kilogram bowling ball three separate times. She drops the ball from heights of 1 meter, 2 meters, and 3 meters. Which graph correctly shows the ball’s kinetic energy when dropped from each height?(1 point)
The correct graph would show a linear relationship between the height of the drop and the kinetic energy of the ball. As the height increases, the kinetic energy also increases.
Therefore, the graph should show a straight line with a positive slope. Option 1 appears to be the correct graph as it shows a straight line with a positive slope.
Which of the graphs below best shows the relationship between a freely falling object’s gravitational potential energy and the object's height from the ground?(1 point)
Without the graphs provided, I cannot accurately determine which of the graphs below best shows the relationship between a freely falling object's gravitational potential energy and its height from the ground. Please provide the graphs for further assistance.
just explain how the graph would look
The relationship between a freely falling object's gravitational potential energy and its height from the ground can be represented by a graph that shows the change in potential energy as the height changes.
This graph would be a line with a positive slope. As the height from the ground increases, the gravitational potential energy also increases. The line on the graph would start from the origin (representing zero height and zero potential energy) and slope upwards as the height increases.
The formula for gravitational potential energy is given by: PE = m * g * h, where PE is the potential energy, m is the mass of the object, g is the acceleration due to gravity, and h is the height from the ground.
So, as the height increases, the potential energy will also increase linearly on the graph. The line will have a positive slope, reflecting the direct relationship between height and potential energy.
What is one way to increase a ski jumper’s potential energy?(1 point)
Responses
By lowering the height of the ski jump hill
By lowering the height of the ski jump hill
By using shorter skis
By using shorter skis
By raising the height of the ski jump hill
By raising the height of the ski jump hill
By using longer skis
By raising the height of the ski jump hill.
As shown below, an object with a mass of 5 kg is moving at a speed of 10 m/s. Another object with a mass of 10 kg is moving at a speed of 5 m/s.
Which of the objects has higher kinetic energy?
(1 point)
Responses
The 5 kg object has higher kinetic energy.
The 5 kg object has higher kinetic energy.
The objects have equal kinetic energy.
The objects have equal kinetic energy.
The 10 kg object has higher kinetic energy.
The 10 kg object has higher kinetic energy.
Both objects have zero kinetic energy.
To determine which object has higher kinetic energy, you can calculate the kinetic energy for each object using the formula:
Kinetic Energy = 1/2 * mass * velocity^2
For the first object with a mass of 5 kg and a speed of 10 m/s:
Kinetic Energy = 1/2 * 5 kg * (10 m/s)^2 = 250 Joules
For the second object with a mass of 10 kg and a speed of 5 m/s:
Kinetic Energy = 1/2 * 10 kg * (5 m/s)^2 = 125 Joules
Therefore, the first object with a mass of 5 kg and a speed of 10 m/s has higher kinetic energy, 250 Joules, compared to the second object's kinetic energy of 125 Joules.
Hence, the correct answer is: The 5 kg object has higher kinetic energy.