Net Force
What is Newton's First Law of Motion?
An object at rest will stay at rest, and an object in motion will stay in motion until an unbalanced force acts upon it.
What is the math formula for Newton's Second Law of Motion?
F=M*A, Force= mass times acceleration
What is Newton's Third Law of Motion?
For every action there is an equal and opposite reaction.
What type of force is a gravitational force?
An attractive force
What is kinetic energy?
Energy in motion
What is the definition of Net Force?
the sum of all forces being applied on an object.
As mass ______, acceleration ______.
increases; decreases
Forces are ____ in size and ____ in direction.
equal; opposite
As mass ______, gravitational force _____.
increases, increases
What other type of energy is kinetic energy paired with?
Potential energy
I am pressing on a box with 50 N of force to the left, my friend is pushing the box to right with a force of 50N. Is the force balanced or unbalanced and how do you know?
Balanced, Net Force is 0.
As force ______, acceleration _____.
A person is paddling a boat in a river. List at least two points of interaction.
boat and the water
the person and the boat
the person and the paddle
the paddle and the water
As distance ______, gravitational force _____.
increases, decreases
As mass _____, kinetic energy _____.
Increases, increases
My friend and I are pushing a car with 150 N each. What is the net force?
300N.
If the mass of an object is 15 kg, and the acceleration is 3 m/s, what is the force?
45N
If a rocket just launched, what are the action and reaction forces.
Action- exhaust pushing on the ground
Reaction- the ground pushing back on the exhaust.
One ball has a mass of 10 kg, while another ball has a mass of 1 kg. Which of these has the greatest gravitational force? Why?
The ball with 10 kg because it has a greater mass.
As speed ______, kinetic energy _____.
increases, increases.
I am pushing on a wagon with 400 N of force. My other two friends are pushing with 200 N, and 300 N. What is the Net Force and are the forces balanced or unbalanced?
100N, unbalanced.
If the acceleration of an object is 5 m/s and the force is 30 N. What is the mass?
6 kg
A car is traveling down the highway and crashes into a brick wall. List one points of interaction and the action reaction force being applied.
the car and the road. Action- car pushing on road Reaction- road pushing on car
the car and the wall. Action- the car pushing on the wall. Reaction- the wall pushing back on the car
Does the earth or the moon have greater gravitational pull. How do you know?
The earth, because it has more mass than the moon.
Will a roller coaster have more kinetic energy at the top of the hill or the middle? How do you know?
In the middle, because there was an increase in speed.