Questions and Answers
What is momentum?
What are the units of momentum?
kg * m/s
To have momentum, an object can be stationary.
False
What two things make up momentum?
Signup and view all the answers
Momentum is a scalar quantity.
Signup and view all the answers
What happens if you increase the time during an interaction?
Signup and view all the answers
What happens when a moving object collides with an object at rest?
Signup and view all the answers
What is the Law of Conservation of momentum?
Signup and view all the answers
The greater the force acting on an object, the lesser the change in velocity.
Signup and view all the answers
The greater the change in velocity, the lesser the change in momentum.
Signup and view all the answers
What is impulse?
Signup and view all the answers
The greater the impulse, the lesser the change in momentum.
Signup and view all the answers
What does momentum have?
Signup and view all the answers
Momentum cannot change unless acted upon by an external force. True or False?
Signup and view all the answers
When a quantity doesn't change, it is described as what?
Signup and view all the answers
What is an elastic collision?
Signup and view all the answers
What is an inelastic collision?
Signup and view all the answers
Study Notes
Momentum Concepts
- Momentum is defined as the product of an object's mass and its velocity.
- The unit of momentum is expressed in kg * m/s.
- An object must be in motion to possess momentum; it cannot be stationary or at rest.
- Momentum consists of two primary components: mass and velocity (speed).
- Momentum is a vector quantity, meaning it has both direction and magnitude.
Impulse and Forces
- Increasing the time of force application results in a decrease of the required force.
- When a moving object collides with a stationary object, the momentum change for both is equal in magnitude.
- The Law of Conservation of Momentum states that the total momentum remains constant before and after a collision.
Effects of Force and Velocity
- A greater force acting on an object leads to a more significant change in its velocity.
- An increased change in velocity corresponds to a more considerable change in momentum.
Impulse Definition
- Impulse is defined as the product of force and the time duration over which it acts.
- A larger impulse results in a greater change in momentum.
External Forces and Conservation
- Momentum will not change unless acted upon by an external force.
- When a physical quantity remains unchanged over time, it is described as being conserved.
Types of Collisions
- An elastic collision is one where the objects collide without deformation and do not generate heat.
- An inelastic collision occurs when objects become deformed or generate heat, often resulting in them being connected post-collision.
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
Description
This quiz covers essential concepts related to momentum and collisions in physics. It includes definitions and key characteristics of momentum, its units, and its properties. Perfect for students seeking to reinforce their understanding of this fundamental topic.
