Newton's Laws
Formula for Newton's 2nd Law
What is F=ma?
If a plane is flying at a constant speed and altitude, the upward lift force is equal to this other force.
What is 'weight'?
A car travels at a constant speed of 60 km/h for 2 hours. How far does it travel?
What is 120km ?
This type of measurement has only a magnitude and a unit
What is a scalar?
The velocity of a car that traveled 40 meters in 8 seconds
What is 5m/s?
Formula for Newton's Third Law of Motion
What is F1=F2?
This force acts opposite to the direction of motion and slows the plane down.
What is drag?
A 10 kg object is pushed with a force of 50 N. What is the acceleration of the object?
What is 5m/s2?
Definition of 'matter'?
What is anything that takes up space and has mass?
How much time would it take for a car moving at 40m/s to travel 800 meters?
What is 20 seconds?
If a 12 kg object is accelerating at 4 m/s², what is the force of the object?
What is 48N?
What two factors must be considered for the 'weight' force?
What are gravity and the mass of the plane?
If an object is at rest, what can you say about the net force acting on it?
What is 'all the forces are equal'?
This is the value of the acceleration due to gravity on Earth
What is 9.8m/s2?
The trajectory of an object thrown straight up
What is a straight line?
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?
If a plane is accelerating forward at 5 m/s² and has a mass of 40,000 kg, what is the net thrust force acting on it?
What is 200,000N ?
The shortest distance between two points is what?
What is a straight line?
**This is the definition of displacement.**
Velocity and speed are different because...
Speed = Scalar
Velocity = Vector
Velocity measures _____ speed while Acceleration measures ____ speed?
What are CONSTANT and CHANGING (respectively)?
According to Newton's Second Law, if the same force is applied to two objects of different masses, the object with less mass will have this acceleration.
What is greater acceleration?
If the lift force is 1000N, the weight force is 1100N, and the drag force is 300N greater than the thrust, what is happening to the plane?
What is landing?
A bowling ball and feathers are suspended in a vacuum of which all the air is removed. Both objects are released at the same time. Which object lands first?
What is they both land at the same time?
These forces can affect the trajectory of an object that is thrown in the air and rolling on the ground
What are gravity and friction?
If I am walking at 6m/s then come to a stop within 2 seconds, what is my acceleration?
What is -3m/s2?