Earth Impact.

     Imagine you are in the future. An asteroid is coming to Earth. You and your team get on a space ship. The space ship is equiped so that it can destroy half of the asteroid. The asteroid has a mass of 20000kg and a speed of 25000 meters a second.  Calculate the force of the asteroid before and after half the asteroid is destroyed? Why is the force less when half is destroyed? 

Click Here to Answer

Asteroid Impact

 Imagine an asteroid is heading toward Earth. The asteroid is heading on a trajectory to hit the international space station. You are on a team of scientist working  on this problem. What question could you ask to help solve this problem of science and engineering? 

click to answer

Newton's Third Law

 Write an example of Newton's third law of motion. Your example should include action and reaction forces. 

Click Here to Answer

hidden game

Newton Three Laws

 Please give an example of one Newton's three laws of motion. 

Click Here to Answer

Penny Drop

What would happen if you dropped a penny off a tall building. The is a common urban legend about dropping a penny of the empire state building in New York city. If this happend what do you think the results would be when it landed on the ground below?  How would terminal velocity affect the outcome? 

 video link

Click here to Answer

Falling Objects

 Eli says to Eben the heavier an object is the fast it falls. Eben tells Eli that he wrong. Eben says the longer an object falls the faster it falls. Han says that there are more factors involved when objects fall. Who do you think is right and why? 

Videos:

Click here to answer

 

Types of Friction

 What are the three types of friction? 

Click here to Anser

Friction

 You roll a model car down the hallway.  The car came to a stop without hitting anything. Connor said it stopped because there was no force pushing on it. Stoy said it was because of unseen forces. Who do you agree with and explain why you agree. 

Click Here to Answer

Collision

 Anthony is conduction a train going east at 26 meters per second with a mass of 7200kg. Ben is conduction a train going west at 44 m/s and a mass of 5000kg. 

1. what is the momentum of the two trains before they collide? 

2. What is the momentum of the trains at the time of the collision? 

3. What will happen to Anthony's train when it hits Ben's train?

Click Here to Answer

Law of Conservation of Momentum

 The law of conservation of momentum means when two objects collide momentum is not lost but transferred. If you created a collision between two objects, how could you predict the outcome of the two objects. 

Click here to Answer

 

Conservation of momentum

 The law of conservation of momentum helps us predict what will happen when two objects collide. What happens when two objects with the same momentum collide? 

Click Here to Answer