Force and Motion
when you increase force, what happens to acceleration?
Increases
the length of a wave from peak to peak is called ________
wavelength
weight is dependent upon an objects mass and ______
gravity
the smallest unit of matter
atom
energy is transferred by direct contact
conduction
Newton's 2nd law states that force is equal to mass times _____
acceleration
the number of wave cycles repeated in one second is called _______
frequency
when you increase mass, what happens to gravity?
increases
A change in matter where a substance’s properties change, but not the composition of its particles.
Physical Change
energy is transferred by mass motion of molecules
convection
this law states that for every action there is an equal and opposite reaction
Newton's 3rd Law
When you look at a glass window to a store on a sunny day, you can see yourself in the glass. What vocabulary word do we use to describe this phenomenon?
Reflection
true or false: forces exist between all objects?
true
A change in matter where a substance’s particles interact with another substance to make new particles.
Chemical Change
energy is transferred by electromagnetic radiation
radiation
Using the equation for Newton's 2nd law (F=ma), solve the equation below for mass:
You apply a force of 10 Newtons to a soccer ball. It allerates at 5 m/s2. What is the mass of the soccer ball?
2 kg
When you look at a glass window to a store on a sunny day, you can see through the glass to the store inside. What vocabulary word do we use to describe this phenomenon?
Transmission
what unit is used to describe the strength of an electric field?
coulomb
the law of conservation of matter states ...
matter cannot be created or destroyed
the temperature at which a thermodynamic system has the lowest energy and particles are not moving
absolute zero
In the Newton's cradle demonstration, potential energy is transformed into what 3 forms of energy?
kinetic, sound, thermal
The main difference between analog and digital signals is that analog signals have ___________ electrical signals, while digital signals have __________ electrical signals
continuous, non-continuous
magnetic field strength is typically measured in what?
amperes per meter (A/m)
what are the products of reacting baking soda and vinegar?
sodium acetate, water, and carbon dioxide
energy always moves from...
high to low