8.5 (Term 1) Flashcards
Glossary Sir Isaac Newton Newton's Laws of Motion Inertia Momentum Objectives State Newtons three laws of motion. The effect of balanced and unbalanced forces on the motion of an object Recognise which of Newton’s Laws of Motion apply to various practical situations. Identify forces acting on objects that are stationary or moving in a straight line.
1
Q
What does Newton’s first law of motion state?
A
Newton’s first law states that an object will remain at rest or continue at constant speed and direction unless acted upon by an outside unbalanced force.
2
Q
What is another name for Newton’s first law of motion?
A
It is often known as the Law of Inertia.
3
Q
What is inertia?
A
Inertia is the property of objects that makes them resist changes in their motion.
4
Q
How does mass affect inertia?
A
The greater the mass of an object, the more inertia it has.
5
Q
What is momentum?
A
Momentum is a measurement of mass in motion. Any object that is moving has momentum.
6
Q
How is momentum calculated?
A
Momentum is equal to mass times velocity, expressed as 𝑝=𝑚𝑣, where p is momentum, m is mass, and v is velocity.
7
Q
A
