Force Be With You
Weighing Us Down & Grating
Newton Rules
On the Move
Scenarios, Calculations and Misc Stuff
100
A push or pull which may cause an object to accelerate.
What is a force?
100
A force which opposes the motion or intended motion of an object. Or a force which opposes the motion of a objects as they move/ attempt to move past one another.
What is friction?
100
This law basically says an object will keep doing what its doing. At rest it will stay at rest, at constant velocity will stay at constant velocity, until an external unbalanced force acts upon the object
What is Newton's first law?
100
An object has this physical property as a result of its mass and velocity.
What is momentum?
100
An object has a mass of 5 kg on Earth where the acceleration due to the gravitational force is about 10m/s^2. This is the weight of the object.
What is 50N?
200
Newton
What is the SI unit for force?
200
An example of this is a tire on a car rolling down the road. This type of force works against the direction the car is trying to move.
What is rolling friction?
200
This law states that for every force acting on an object, the object will exert an equal and opposite force back on whatever exerted the force on it. The Earth pulls you down, you pull the Earth up.
What is Newton's third law?
200
This law states that momentum cannot be created nor destroyed.
What is law of conservation of momentum?
200
A car is traveling with a passenger out of their seat belt. If the car stops suddenly the passenger will go flying forward because of this law.
What is Newton's first law?
300
Total or sum of all forces acting on an object.
What is the net force?
300
This force will "hold" an object in place so that it is more difficult to move across a surface.
What is static friction?
300
This law explains how different objects will accelerate when subjected to an unbalanced force. Ex: if a 5 kg mass is subjected to a 10N force it will have a larger acceleration than a 20 kg object subjected to the same 10N force.
What is Newton's second law.
300
An object has a mass of 2kg and a velocity of 20 m/s. What is the momentum of the object?
What is 40 kgm/s?
300
When the air resistance acting on an object is balanced by the gravitational force pulling it down. The object will move with constant velocity. This velocity has a special name.
What is terminal velocity?
400
An unbalanced force causes an object to do this.
What is acceleration?
400
On Earth an object has a mass of 70 kg. If the object moves to the moon this value WILL CHANGE, because the acceleration due to the gravitational force on the moon is 1/6 that of Earth's.
What is weight?
400
A cue ball hits a set of stationary pool balls. Without the interaction the pool balls would remain at rest because of this law.
What is Newton's first law.
400
It is never possible to have an object with a small mass have more momentum than an object with a large mass. True or False
What is False? We have seen if it moves fast enough it can have more momentum than a more massive object.
400
A balloon moves because as it pushes the air out the air pushes back on the balloon. This law explains this behavior.
What is Newton's third law?
500
When the forces acting on a object are __________, the object will stay at rest or move with constant velocity.
What is balanced?
500
A measure of the amount of matter an object is made of or a measure of the amount of inertia an object has.
What is mass?
500
Another name for Newton's first law.
What is Law of inertia?
500
A student is going to conduct an experiment to see how the momentum of an object changes when the mass of the object changes. They select different size marbles (each with a different mass). Each marble is rolled with the same velocity and the momentum is measured/recorded. This is the independent variable in this experiment.
What is mass or size of the marble?
500
If we increase the mass of one object, how does the gravitational force between the objects change. (Hint: recall the law of universal gravitation - which states that there is an attractive force between all masses)
What is the force increases?
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