Let’s Play! Please listen carefully and think before answering. Good Luck!!

Electricity/ Chemistry VAWP Forces/ Friction Heat/ Energy Waves Electricity/ Chemistry Miscellaneous 100 100 100 100 100 100 200 200 200 200 200 200 300 300 300 300 300 300 400 400 400 400 400 400 500 500 500 500 500 500

Give an example of speed AND velocity VAWP 100

Speed is just determined by distance/time Answers vary. Speed is just determined by distance/time Velocity is determined by distance/time AND includes direction

VAWP 200 Define Acceleration. Include unit for Acceleration.

Acceleration is a change in velocity (speed up/ slow down/ change direction) Units: m/s2

What does it mean to do work in a scientific sense What does it mean to do work in a scientific sense? Include unit for Work. VAWP 300

Work is moving something in the direction of an applied force (W= F x d) Work is measured in Joules (J)

What is the formula for Power? Include unit for Power. VAWP 400

Power = Work/ time Unit: Watts (W)

VAWP 500 In the rod and reel Power Competition, Mikey reels up a 9.81 N weight a 1.0m in 6.44 seconds. What is Mikey’s Power?

P= W/t W= F x d F= 9.81 N d= 1.0 m t= 6.44 s W= 9.81 N x 1.0 m = 9.81 J P = 9.81J/ 6.44 s = 1.52 W

What is the combination of all forces acting on an object called? Forces/ Friction 100

Net Force

Define Friction. Forces/ Friction 200

The force that resists motion.

Give an example of Static Friction AND Kinetic Friction Forces/ Friction 300

Static: Stationary/ Still/ At Rest Answers Vary. Static: Stationary/ Still/ At Rest Kinetic: Moving

Contrast Balanced and Unbalanced Forces Forces/ Friction 400

Balanced Forces: Net Force = 0N No Acceleration Objects are stationary or traveling at constant velocity Unbalanced Forces: Net Force not equal to 0N Acceleration Objects speed up/ slow down/ change direction

Briefly define all of Newton’s Laws Forces/ Friction 500

Law of Inertia- Objects at rest remain at rest/ objects in motion maintain velocity until unbalanced force acts on object F=ma- The unbalanced force acting on object is equal to the object’s mass times its acceleration Action/Reaction Pairs- For every action force there is an equal and opposite reaction force

Provide the formula and unit used for Gravitational Potential Energy Heat/ Energy 100

GPE = mgh Measured in Joules (J) **g = 9.81m/s2

Provide the formula and unit used for Kinetic Energy Heat/ Energy 200

**remember to square speed/velocity FIRST! KE = 1/2 mv2 Measured in Joules (J) **remember to square speed/velocity FIRST!

How are Kinetic Energy and Temperature related? Heat/ Energy 300

Direct relationship, as KE increases, so does temperature/ as KE decreases, so does temperature

Explain the type and direction of heat energy transfer when you touch a hot cup of coffee.

Heat energy is transferred from high temperature to low temperature so direction is from the cup of coffee to your hand. You are in direct contact with the hot cup, so type of transfer is conduction.

Describe the 3 methods of heat energy transfer.

Conduction: Direct contact/ collision of particles Convection: Movement of liquids or gases (fluids) in convection currents Radiation: Transfer through waves/ no contact/ no movement of matter

Waves 100 Which type of of waves require a medium? What does that mean?

Mechanical Waves, these waves must travel through something/ they can’t travel through a vacuum

Give an example of a Mechanical wave AND Electromagnetic wave Waves 200

Answers vary. Mechanical: sound… EM: light…

DAILY DOUBLE Waves 300

Which type of electromagnetic wave has the highest frequency Which type of electromagnetic wave has the highest frequency? Lowest frequency? Waves 300

Highest Frequency: Gamma Rays Lowest Frequency: Radio Waves

Which type of electromagnetic wave has the longest wavelength Which type of electromagnetic wave has the longest wavelength? shortest wavelength? Waves 400

Longest Wavelength: Radio Waves Shortest Wavelength: Gamma Rays

List all of the EM waves in order from Longest to shortest wavelength.

Radio Waves Microwaves Infrared Visible Light Ultraviolet X Rays Gamma Rays

Electricity/ Chemistry 100 What are the 3 subatomic particles (include charge for each) Electricity/ Chemistry 100

Proton: positive (+1) Neutron: neutral (no charge, 0) Electron: negative (-1)

Electricity/ Chemistry 200 Provide units for: Electric Current Resistance Electric Potential Electricity/ Chemistry 200

Electric Current: Amp Resistance: Ohm Electric Potential: Volt

Electricity/ Chemistry 300 Describe the signs between 2 charged objects if: There is an attractive force between the objects There is a repulsive force between the objects

There is an attractive force between the objects: Charges are unlike There is a repulsive force between the objects: Charges are like

Electricity/ Chemistry 500 Explain why atoms bond with other atoms. Include a description of the 2 main types of bonds we’ve talked about (covalent and ionic). Electricity/ Chemistry 500

Atoms bond to become stable (have a full valence electron shell) Covalent Bonds: Share electrons Ionic Bonds: transfer Electrons

Electricity/ Chemistry 400 Looking on the periodic table, how can you determine: Protons Neutrons Electrons Valence Electrons

Protons: Atomic Number Neutrons: Mass - Protons Electrons: Same as number of protons in neutral atom (to balance charge) Valence Electrons: determined by the group number

Atoms of elements in group 15 will all have how many valence electrons? Miscellaneous 100

5

Why is copper a good conductor of electricity? Miscellaneous 200

Electrons are free to move from one atom to another

In the diagram below, if the total length of the red line is 6 meters, find the wavelength of one wave: Miscellaneous 300

3 meters

Miscellaneous 400 Describe the freezing and boiling points of water on the Fahrenheit and Celsius scales

F: Freezing = 32/ Boiling = 212 C: Freezing = 0/ Boiling = 100

Daily Double! Miscellaneous 500

Miscellaneous 500 Contrast exothermic and endothermic processes. Give an example of an exothermic phase change AND Give an example of an endothermic phase change. Miscellaneous 500

Exothermic: energy is released: Freezing/Condensing/etc. Endothermic: energy is absorbed: Melting/ Vaporizing/ etc.