Atoms and the PT
What is the charge on a neutron?
There is no charge
The high points on a transverse wave are called what?
Crests
What is energy?
The ability to do work
Streamlining helps reduce which force?
Air resistance
Identify the reactions below as single replacement, double replacement, synthesis, decomposition, or combustion.
2 NaF + 1 Br2 → 2 NaBr + 1 F2
Single Replacement / Displacement
Which element is in group 6 period 4?
Cr Chromium
Wavelength X frequency
A football thrown to a teammate is an example of kinetic or potential energy?
Kinetic
Lubricants such as oil help reduce which force?
Friction
5
How many periods are shown on the periodic table?
7
Amplitude is a measure of what?
The height of the wave
What type of energy is also known as heat energy?
Thermal energy
This is the force that prevents solid objects from passing through each other.
Normal force
Which reaction involves two things combining to make something new?
Synthesis reaction
The atomic number is the number of __________ in the nucleus.
protons
Which EM spectrum wave has the largest wavelength?
Radio waves
What is the equation c = Q/(mΔT) used to find?
specific heat
Which of the following are contact forces?
Magnetic Friction Air Resistance
Electric Normal Tension
Spring Gravity
Friction, air resistance, normal force, tension, and spring
Which reaction always needs oxygen gas (O2) as a reactant?
Combustion Reaction
An iron atom has an atomic mass of 56, an atomic number of 26, 26 protons, and 26 electrons. How many neutrons does it have?
30. Atomic mass - protons. 56 minus 26.
How are a wave's frequency and its wavelength related?
the greater the frequency, the smaller the wavelength
What unit do we measure energy in?
Joules (J)
Which of the following are field forces?
Magnetic Friction Air Resistance
Electric Normal Tension
Spring Gravity
Magnetic, electric, gravity
What side of the chemical equation are the reactants found on?
The left side