When an object has its motion changed the cause is generally?
Weegy: When an object has its motion changed, the cause is generally an external force. User: Describe what would happen if, while wearing rollerskates, you pushed as hard as you could against a wall.
What object would have the most momentum?
Two objects of different mass are moving at the same speed; the more massive object will have the greatest momentum. A less massive object can never have more momentum than a more massive object. Two identical objects are moving in opposite directions at the same speed.
What are the 4 main types of resistance forces?
The four main resistance forces are objects with mass, inertia, and momentum; friction; gravity; and air resistance.
Is air affected by human movement?
Air has mass, but not inertia. C. Air is not affected by human movement.
When the force on an object increases so does its?
From Newton’s second law the force on an object is related to the acceleration. The acceleration is directly proportional to the force applied to an object. For an object whose mass remains constant, when the force increases the acceleration increases. When the force on an object increases, so does its acceleration.
What happens when you increase the force on an object?
As we increase the force on an object the acceleration increases proportionally. Since the mass does not change as the acceleration increases, we can say that force is equal to acceleration. Therefore, if you double the force you double the acceleration. Therefore, mass is inversely proportional to acceleration.
Can a lighter object have more momentum than a heavier one how?
Question: Can A Lighter Object Have More Momentum Than A Heavier One? No, Because Momentum Is Independent Of The Mass Of The Object.
What happens when two objects with the same momentum collide?
For a collision occurring between object 1 and object 2 in an isolated system, the total momentum of the two objects before the collision is equal to the total momentum of the two objects after the collision. That is, the momentum lost by object 1 is equal to the momentum gained by object 2.
Does Momentum have direction?
Momentum is a derived quantity, calculated by multiplying the mass, m (a scalar quantity), times velocity, v (a vector quantity). This means that the momentum has a direction and that direction is always the same direction as the velocity of an object’s motion.
What are the two types of forces?
There are 2 types of forces, contact forces and act at a distance force. Every day you are using forces. Force is basically push and pull. When you push and pull you are applying a force to an object.
What is a balanced force?
Balanced forces are equal in size and opposite in direction. When forces are balanced, there is no change in motion. In one of your situations in the last section, you pushed or pulled on an object from opposite directions but with the same force.
What are the four forces of nature?
If you remember any of the physics you learned in school, it’s possible you may remember that there are four fundamental forces of nature. They are in no particular order gravity, electromagnetism, the weak nuclear force and the strong nuclear force.
Which type of air pollution is most difficult to measure from space?
Clouds, variations between land and water, and the three-dimensional structure of the atmosphere make it difficult to measure air pollution from space. These images, collected on April 13, 2014, compare a natural-color view of of Southeast Asia to the measured concentration of aerosols.
How can air quality be fine on one day and hazardous on the next?
How can air quality be fine on one day and hazardous on the next? Air quality can be fine on one day and hazardous the next because of the way that air flows. Weather systems can push “bad” air out of the area, or stagnant weather systems can leave “bad” air in place, making the air quality worse.
Does air pollution go away?
Tell students that pollutants emitted into the atmosphere do not stay in the atmosphere or even directly above the polluting source forever. They move throughout the atmosphere and are moved and removed by natural processes.