Calculating Net Force
What do you do with forces going in opposite directions?
You subtract them.
What are the two main types of energy that applying a force can change?
Potential and Kinetic
Describe the relationship between mass and force?
The greater the mass, the greater the force and vise versa.
Mass
the amount of matter in an object
Which will produce more force on the basis of mass?
A puppy or an elephant
Elephant
40 N ------> <------- 41 N
1 N to the left
Differentiate between potential and kinetic energy.
Potential - the energy something has based on its shape of position
Kinetic - the energy of motion
Describe the relationship between acceleration and force.
The greater the acceleration, the greater the force and vise versa.
Acceleration
a measure of how fast an object is traveling
Which will be higher if a car is zooming down the highway: Potential energy or kinetic energy?
Kinetic energy
TRICKY TRIPLE: If unequal forces are applied in opposite directions, what will the result be?
If an object is staying still, explain what is going on with it potential and kinetic energy.
The potential energy is high because the object is not in motion but now has the "potential" to fulfill its purpose, whereas the kinetic energy (the energy of motion) is low because its not in motion.
TRICKY TRIPLE: Explain the relationship between mass and acceleration.
The greater the mass, the lesser the acceleration. The two are INVERSELY proportionate.
Force
a push or pull
Which will produce less force on the basis of acceleration: a human or a sloth
a sloth
Explain what happens when the net force is 0 N.
There will be no motion nor direction because the net force is balanced.
If an object is in motion, explain what is happening to its potential and kinetic energy.
The potential energy is low whereas the kinetic energy (the energy of motion) is high because the object is in motion.
Define "directly proportionate".
What happens to one happens to the other. For example, if I INCREASE the mass, then the force will also INCREASE.
Gravity
the force that pulls us down towards the center of the Earth
TRICKY TRIPLE: Which will have an impact on the direction an object travels: balanced force or unbalanced force?
unbalanced force
You see a net force problem that has multiple forces being applied to it. Explain what you should do in order to calculate the net force.
All forces that are going in the same direction should be added together and forces that are going in the opposite direction should be subtracted.
DAILY DOUBLE: Describe the relationship between kinetic and potential energy. I.e. If something is done to one, what happens to the other?
Potential and kinetic energy have an INVERSELY proportionate relationship. When you increase the kinetic energy, you decrease the potential energy. When you decrease the kinetic energy, you increase the potential energy.
What two factors impact force strength and in what two ways can a force impact the motion of an object?
The two factors that impact force strength are mass and acceleration and a force can impact an object's speed and/or direction.
Newton
the unit for force
Which will increase the potential energy of an object: A) gravity and friction or B) pushing/pulling an object down a hill
A