What's the Force?
The force that keeps all objects on the ground
What is gravity?
When friction is acting on an object, what will happen?
What is the object will slow down?
This is the original source of energy.
What is the Sun?
What is a push or a pull causing an object to move, stop, or change speed?
What is a force?
This physicist is the reason why we know so much about forces.
Who is Isaac Newton?
This is the force that always acts in the opposite direction of motion.
What is friction?
The forces are balanced if the forces result in this magnitude and direction.
What is equal and opposite?
This is the type of energy is stored in food and batteries.
What is chemical energy?
This is the overall force on an object after all the forces acting on it are combined.
What is net force?
A student says, “The net force on the cart is 15 joules.” In response, the teacher makes this correction to their statement.
What is changing 15 joules to 15 newtons?
This is the name of the force that is the result of the force of gravity acting on an object.
What is weight?
This is how an object will move if it has a net force that is NOT zero after all the forces acting on it are combined.
What is move in the direction of the greater force?
The Sun uses this kind of energy in order to produce light and heat.
What is nuclear energy?
This is the unit of measure for energy.
What is Joules?
According to Newton's Third Law, every action force has what kind of reaction force?
What is an equal and opposite reaction?
When a parachute opens, the canopy catches air and slows the person down. The canopy must generate enough of this force in order to slow down the fall.
What is air resistance/drag?
A car travels in a straight line at a constant, unchanging speed. Even if several forces are acting on it, this is the net force on the car.
What is zero, or balanced?
This is how an object's potential energy can be increased without changing its weight.
What is increase the object's height? (Also acceptable: place the object higher).
This type of energy is also known as electromagnetic radiation.
What is radiant energy?
This is the formula used to calculate the amount of potential energy an object has.
What is mass times gravity times height? (Also acceptable: weight times height).
An airplane is moving forward, but air resistance pushes against it. Name the force that pushes it forward and the force that pushes backward.
What are thrust and drag?
A plane is moving forward. Its thrust is 800 N, its drag is 800 N, its lift is 1,200 N, and its weight is 1,200 N. If the drag suddenly increases to 950 N while the other forces stay the same, this is how the plane's motion will change.
What is go backwards?
This is the energy transformation that takes place when wind causes the wind turbine to spin.
What is motion (kinetic) energy into electrical energy?
An object's kinetic energy is based on its mass and this other variable.
What is velocity?
An atom has a nucleus made of protons and neutrons. Around its nucleus are electrons. These are two possible forms of energy an atom can produce.
What is nuclear energy and electrical energy?