1st Law
This English physicist formulated the first law of gravity in 1687.
Who is Isaac Newton?
In the equation F=ma, what does F stand for?
What is force?
Newton's Third Law of Motion
What is every action has an equal and opposite reaction?
This force pulls the plane down toward the Earth.
What is weight?
If a plane is flying at a constant speed and altitude, the upward lift force is equal to this other force.
What is 'weight'?
Newton's 1st Law
What is 'an object in motion will stay in motion and an object at rest will stay at rest unless acted upon by a force'?
Newton's Second Law of Motion states that force equals mass times this.
What is acceleration?
Formula for Newton's Third Law of Motion
What is F1=F2?
This force acts upward against gravity and is generated by the wings.
What is lift?
A plane has a mass of 50,000 kg. If the acceleration due to gravity is 10 m/s², what is the weight force acting on the plane?
What is 500,000N?
Newton's First Law of Gravity states that every object in a state of uniform motion will remain in that state unless this is applied.
What is a force?
If you apply a larger force to an object, what happens to its acceleration, assuming the mass stays the same?
What is it increases?
If a car crashes into a wall, the force the car exerts on the wall is ____ the force the wall exerts on the car.
What is 'equal to'?
This force pushes the plane forward and is generated by the engines.
What is thrust?
If the thrust force of a plane's engines is 5000 N and the drag force is 2000 N, what is the net forward force on the plane?
What is 3000 N?
This is the definition of a force.
What is a push or pull that causes an object to move?
The unit of Force
What are Newtons?
In a rocket launch, the rocket releases gas out of its engines. According to Newton's Third Law, the rocket moves upwards because of this force. What is the action force?
What is the force of the gas being expelled downward?
This force acts opposite to the direction of motion and slows the plane down.
What is drag?
If a plane is accelerating forward at 2 m/s² and has a mass of 40,000 kg, what is the net thrust force acting on it?
What is 80,000 N?
In space, where there is very little friction, what would happen to a spacecraft if no external forces acted upon it?
What is that it would continue moving in a straight line at a constant speed?
If a 10 kg object is accelerating at 2 m/s², what is the force acting on it?
What is 20 N
A swimmer pushes water backwards with her hands. According to Newton's Third Law, what is the force that propels her forward?
What is the force of the water pushing forward on her hands?
What two factors must be considered for the 'weight' force?
What are gravity and the mass of the plane?
If the lift force on a plane is 600,000 N and the weight is 550,000 N, what is the total vertical force acting on the plane?
What is 50,000 N (upward)?