IPC FREEDOM
What is how far an object has moved?
Distance
What is the distance and direction of an object’s change in position from the starting point?
Displacement
What is the distance an object travels per unit of time?
Speed
What is the total distance traveled divided by the total time of travel?
Average Speed
What is the speed at a given point in time?
Instantaneous speed
What includes the speed of an object and the direction of its motion?
Velocity
What is the rate of change of velocity?
Acceleration
What is the product of an object’s mass and velocity?
Momentum
What is the acceleration toward the center of a curved or circular path called?
Centripetal acceleration
What property of matter is momentum related to?
Mass
What does a change in acceleration also mean a change in?
Speed, direction, OR both
Sometimes people mistakenly state that velocity and speed are the same thing. Why might people make such a mistake?
Because they forget that velocity describes both speed and direction
What Is the force that opposes the sliding motion of two surfaces that are touching each other?
Friction
What is the force that opposes the motion of objects that move through the air?
Air resistance
What of an object is different on every planet in the solar system?
Weight
The gravitational force exerted on an object is called the objects?
Weight
The sum of all the forces acting on an object is called the what force?
Net force
What law relates the net force exerted on an object to its mass and acceleration?
Newton’s 2nd Law
What term best describes the forces of an object with a net force of zero?
Balanced forces
What term describes the tendency of an object to resist a change in motion?
Inertia
A group of students is playing tug-of-war. The students on both sides of the rope are pulling with equal force. This is an example of what?
Balanced forces
Sally rolls two balls, a heavy bowling ball and a light tennis ball. She notices that it is much easier to roll the tennis ball. What law is this?
Newton’s 2nd Law
When Jasmine kicks a soccer ball, she notices that it travels along the ground but then stops. What law is this?
Newton’s 1st Law
To make a rocket go into the air, NASA engineers point it directly upwards prior to launching the rocket. What law is this?
Newton’s 3rd Law
Kyle is driving a car that suddenly collides with the car in front. As the cars collided, Kyle kept moving forward but his seat belt kept him safe. What law is this?
Newton’s 1st law
Which of Newton’s Laws is also known as the Law Of Inertia?
Newton’s 1st Law
Which of Newton's laws is also known as the Law of Action/Reaction?
Newton’s 3rd Law
What two factors affect the gravitational attraction between 2 objects?
Mass & Distance
What are the types of friction?
Static, Rolling, sliding
T or F? Assume there are equal forces on two objects. If an object has more mass, then it will accelerate at a lower rate than an object with less mass.
True
T or F? Inertia is indirectly proportional to the amount of mass an object has, therefore, the larger mass, the less inertia the object has.
False
T or F? Your mass will change from your location on Earth to your location on the moon.
False
What is the ability to do work called?
Energy
What unit is energy measured in?
Joules
What is the energy associated with motion called?
Kinetic energy
When you rub your hands together, you use friction to convert…
mechanical energy → thermal energy
What is the type of energy stored by fossil fuels?
chemical potential energy
What is potential energy?
Stored
What is potential energy that depends on height called?
gravitational potential energy
How would you calculate an object’s mechanical energy?
Add its kinetic & potential energies
What must be done for work to be done on an object?
The object must move some distance as a result of a force
What do machines do?
Change the amount of force you exert or the distance over which you exert the force
What is the fixed point that a lever pivots around called?
Fulcrum
On a bookshelf, what kind of energy is equal to the work done to lift the book to the shelf?
Gravitational potential energy
What kind of force is exerted by a machine?
Output force
What law states that energy can not be created or destroyed?
Law of conservation of energy
What is work?
Transfer of energy from one object to another
As a pendulum swings, what kind of energy is it being continuously transformed between?
kinetic energy & potential energy
What is a newton-meter measure of work also known as?
Joules
What kind of force is applied to a machine?
Input force
What simple machine is a jar lid an example of?
Screw
How does conduction transfer heat?
Through direct contact between objects
When you feel the warmth of the sun on your skin, which type of thermal transfer is occurring?
Radiation
Imagine you touch a metal spoon that has been sitting in hot soup. The heat is transferred to your hand through what?
Conduction
How does convection transfer heat?
By the movement of fluids
When you sit close to a campfire and feel the warmth in the air around you, which type of thermal transfer is occurring.
Radiation
Why is it a good idea to wear a hat in cold weather?
It prevents conduction of heat
Which method of thermal transfer is responsible for the circulation of warm air rising and cool air sinking?
Convection
When you feel the warmth of a cup of hot cocoa in your hands, what type of thermal transfer is happening between your hands and the cup?
Conduction
What is the rate of heat transfer unit?
Watt
The transfer of energy by electromagnetic waves is called what?
Radiation
What is a good thermal conductor?
Copper
What is an example of convection as a method of heat transfer?
Heating a room using a radiator
What is an example of a good insulator?
Styrofoam
What material would be best for making a pot handle that won't get too hot when placed on the stove?
Plastic
What is the lowest possible temperature called at which particles theoretically stopped moving?
Absolute zero
What happens to the particles in substance when it is heated?
They vibrate faster
What is the primary function of an insulator concerning heat?
To prevent heat transfer
What is an example of a process that absorbs heat?
Boiling water
Why do metals typically make good conductors of heat?
They have thermal conductivity
What affects the rate of heat transfer through a material?
Thickness and material conductivity
As a hot cup of tea cools what happens?
Heat moves from the cock to the atmosphere
Which phase of matter exists at the coldest temperature?
Solid
Instrument of an object's average kinetic energy is also known as the object's what?
Temperature
Force almost always produces thermal energy?
Friction
Thermal energy from the Sun is transferred to the Earth by what?
Radiation
A large tectonic plate on the Earth's surface is caused by what?
Convection currents in the mantle of the Earth
Physics class the teacher discusses absolute zero which is negative 273.15 which is what in Celsius and what in Kelvin?
℃ and equal to 0K
Heat moves from what?
Hot to cold
Force that produces thermal energy is called what?
Friction
What state of matter that has a definite volume but not a definite shape Atoms can move around but stay close together?
Liquid
What state of matter has a definite shape and volume atoms are tightly packed together?
Solid
What state of matter with no definite shape or volume atoms are free to move around are far apart and move quickly with increased temperatures?
Gas
What state of matter has particles that have no definite shape or volume subatomic particles moving extremely fast with the highest energy?
Plasma
The movement of Thermal energy through fluids is called what?
Convection
As temperature increases, what does kinetic energy do?
Increases
A transfer of thermal energy by electromagnetic ways that's called what?
Radiation
The Natural movement of heat from high to low temperatures is called what?
Conduction