In which trial, 1 or 2, will the Red Chair travel the fastest after the collision? Explain how you arrived at your answer. Show all work. Round to the nearest tenth and include units in your final answer.
A teacher is trying to make their egg drop move with the least amount of kinetic energy so that the egg has the greatest opportunity to survive.
Which of the following criteria should the teacher take to reduce the amount of KE on impact? (select all that apply)
They should perform more trials
They should decrease the height of the drop
They should add weight to the egg drop
They should change materials to increase air resistance (friction) of the pod on its drop
Analyze the following rollercoaster positions in the image below.
Which of the following locations has the most PE?
Position A will result in the most PE because it has the most starting KE
Position A will result in the most PE because it is at the highest starting position
Position C has the most PE because it is already moving down the system.
Which will result in the most KE when it reaches the ground line, B?
Position A will result in the most KE because it had the most starting PE
Position B will result in the most KE it is at the lowest position to start
Position C or D has the most KE farther down the system.
Four friends are playing billiards and they are able to make both of the balls move and collide after hitting just one of the balls.
The two friends came up with several ideas on why both balls are able to move. Which one is the most correct explanation.
The first friend says that the force of one ball is only able to move one ball at a time
The second friend says that energy from the one moving ball is transferred to the second ball causing it to move
The third friend says that the force of the of the first ball and second ball are balanced causing both to move
The fourth friend says that the force of the first ball increased before it collided with the second ball causing it to move
A group of really smart science students has created a model spaceship that is meant to be the most efficient model because it does not lose energy to heat and can move at high velocities. They created 4 different designs for the proposal. Which design is best?
Design 1 is best because it gives off the least heat reaches the second greatest velocity
Design 2 is best because it gives off the most heat and reaches the highest velocity
Design 3 is best because it releases large amounts of heat which can be transferred to other parts of the model
Design 4 is best because it travels at a high velocity without losing much heat in the process
Select ALL of the correct description of motion in the force diagrams below: