1.3 Dynamics Flashcards
1
Q
What is Force?
A
A push or pull causing motion.
2
Q
What is a Vector Quantity?
A
Has both magnitude and direction.
3
Q
What is Newton’s 3rd Law?
A
For every action, there is an equal reaction.
4
Q
What is Newton’s 2nd Law?
A
F = ma; relates force, mass, acceleration.
5
Q
What is Resultant Force?
A
Net force acting on an object.
6
Q
What is Momentum?
A
p = mv; product of mass and velocity.
7
Q
What is Momentum Conservation?
A
Total momentum remains constant in interactions.
8
Q
What is an Inelastic Collision?
A
Collision where kinetic energy is lost.
9
Q
What is an Elastic Collision?
A
Collision where kinetic energy is conserved.
10
Q
What is Kinetic Energy?
A
Energy of motion, KE = 1/2 mv².
11
Q
How is Average Force related to momentum?
A
F = Δp/Δt; change in momentum over time.
