Forces 1
What is B?
Attractive force existing between all objects with mass.
What is gravity?
A book is sitting on the dashboard of a car that is stopped at a traffic light. As the car starts to move forward, the book slides backward off the dashboard. This is an example of?
What is Newton's First Law (the law of inertia)
What is the speed of an object that travels 60 meters in 4 seconds?
15m/s
The net force that does not equal zero that acts on an object.
What are unbalanced forces?
An object will not change its motion unless a force acts on it.
What is Newton's first law?
Forces acting on an object that do not cause the object to move.
What are balanced forces?
Forces acting on an object that cause the object to move.
What are unbalanced forces?
If an object has a greater density than water(1 g/cm3), will it sink or float? Why?
What is sink? What is because to float an object needs to be less dense than water?
Newton's second law of motion.
What is Force = mass x acceleration?
What is the Net force when John pushes a box to the East with 100N of force?
100N to the east/right
Measure of the amount of gravity on an object.
What is weight?
Sum of all forces acting on an object.
What is net force?
When an object decreases its acceleration is it positive acceleration or negative?
Negative acceleration
When an object increases its acceleration is it positive acceleration or negative?
It is positive acceleration.
Define Net Force
Must mention: total forces that act on an object.
When forces act in the same direction, you can _____ the forces together.
What is add?
_____ is a force that resists the sliding motion between two objects that are touching.
What is friction?
As the amount of mass increases, the force of gravity between two objects _______.
What is increases?
How can you increase the momentum of an object?
Increasing its mass/Increasing its speed
Type of frictional force that acts on objects as they travel through the air.
What is air resistance force?
A force going to the right at 300 N, an opposite force going to the left at 500N, the net force, and direction are______.
What is 200N to the left?
Net force acting on an object is 0N.
What are balanced forces?
Andres pushes a box 40N to the West, Ivan Pulls the box with 70N of force to the West, what is the net force?
110N to the West
What is the difference between speed and acceleration?
Speed is just motion, and acceleration is when you change the speed.