Newton's Laws of Motion
Who proposed the three laws of motion and when?
Sir Issac Newton in 1686.
What is acceleration?
How quickly velocity changes.
What is Gravity?
Gravity is a force of attraction, or a pull, between objects.
What is momentum?
The product of the mass and velocity of an object.
What types of friction are there?
Kinetic friction and Static friction.
What is an example of the Newton's third law of motion?
A baseball hitting a bat.
What is Force.
A push or a pull.
What is Air resistance?
The force that opposes the motion of falling objects.
What Is the Law of Conservation of Momentum?
When a moving object hits an object at rest, some or all of the momentum of the first object is transferred to the second object.
How can friction be decreased and increased?
To decrease friction you can apply a lubricant between two surfaces and to increase friction you can also increase friction by increasing the force between the two objects.
What is Newton's first law of motion?
Describes objects that have no unbalanced forces, or no net force, acting on them.
What is motion?
When an object changes position over time in
relation to a reference point.
What is terminal velocity?
The speed of an object when the force of air resistance equals the force of gravity.
What is an example of momentum?
A four-wheeler moves at a fast velocity has a smaller momentum than the semi-truck because of its small mass and will stop much faster.
What is friction.
The force that opposes the motion between two surfaces that touch.
What is Newton's second law of motion?
Describes how an object moves when an unbalanced force acts on it.
What is Speed?
The rate at which a an object moves.
What is free fall?
The motion of an object when gravity is the only force acting on the object.
What is the equation for momentum?
p=m x v
What causes friction?
There are hills and valleys on all surfaces ,so when two surfaces touch their hills and valleys they stick to the other hills and valleys.
What is Newton's third law of motion?
Whenever one object exerts a force on a second object, the second object exerts a force on the first object. The forces are always equal in size and opposite in direction.
What is velocity?
The speed of an object and its direction.
What is projectile motion?
The curved path an object follows when it is thrown near the Earth’s surface.
What does momentum depend on?
On an object's velocity & mass.
What affects the amount of friction?
The smoothness of the surfaces of the objects.