Forces
A push or a pull
What is a force?
The tendency of an object to resist a change in motion.
What is inertia?
This force will double as the mass of an object doubles
What is gravitational force?
You add to find net force when forces are acting in __________________________.
What is the same direction?
If a car changes direction, but maintains the same speed, then the object ___________ accelerated.
What is has?
The sum of all forces acting on an object
What is net force?
Seatbelts were invented mainly due to this law of motion.
What is Newton's 1st Law of Motion?
These 3 forces are classified as contact forces.
What are applied force, tension force, and friction?
Also acceptable- normal force
When drawing a free-body diagram, it is important to make the size of the arrow ____________ to the size of the force.
What is directly proportional?
These 2 factors are the factors that determine the force of gravity between any 2 objects.
What are mass and proximity?
Also acceptable- distance
These are present when the velocity of an object does not change
What are balanced forces?
If 2 objects of the same mass accelerate at different rates, which vocabulary term is responsible for this?
What is force?
The force responsible for a book resting on a nightstand.
What is normal force?
Maria pushes a box to the right with 50N of force. Jose pulls the box to the right with 104N of force. What is the net force acting on the box?
What is 154 Newtons to the right?
Lubricants decrease friction by reducing the number of these on a surface.
What are ridges, bumps, nooks, crannies...
These will cause a change in an object's velocity.
What are unbalanced forces?
This law of motion is responsible for the damage done to a moving car by a stationary wall after the car has crashed into the wall.
What is Newton's 3rd Law of Motion?
If I have a mass of 70kg and weigh 1,540 Newtons on Jupiter, then this is the gravitational acceleration on Jupiter.
What is 22 m/s/s?
We draw free-body diagrams with arrows because force is a ______.
What is a vector?
It takes more force to accelerate an 18-wheeler than a sports car. This is explained in this law of motion.
What is Newton's 2nd Law?
This is the name of the diagram that shows the net force acting on an object.
What is a free-body diagram?
If a 250kg car needs to accelerate at 60m/s/s, then what is the necessary force?
What is 15,000 Newtons?
This is the type of force responsible for a feather falling to the ground at a slower rate than a bowling ball.
What is air resistance?
Draw a free-body diagram of 2 tug-of-war teams pulling on a rope. Include force in all 4 directions
See me
A passenger in a car will veer to the right as a car makes a sharp turn to the left. This is explained through this law of motion.
What is Newton's 1st Law of Motion?