Week 26 Benchmark Review
Fill in the chart below: SubstanceElementCompound# of atoms O3O3 Fe 3 O 4 CaCO 3 He ✔ 3 ✔ ✔ ✔ 7 5 1
What are 4 properties of non- metals? 1)Poor Conductor 2)Low Luster 3)Brittle 4)Right side of the zig zag
What is a metalloid? -Has properties of both a metal and a non-metal -Semi conductor of electricity
What are 4 properties of a metal? 1)Good Conductor of electricity 2)Malleable/Ductile 3)High Luster 4)Left side of the zig zag
What is the formula for calculating density? D=m V
If the density of water is 1g/mL, will an object that floats on water be more or less dense than water? Less Dense
A rectangular block has a mass of 12g and the sides measure 3cm by 2 cm by 1cm What is the density of the object? D= m = 12g = 2g/cm V 6cm
Find the density of a marble with a mass of 8g using the picture below: D= m= 8g = 0.4g/mL V 20ml 5 25
Fill in the circle graph to reflect the transformation of kinetic and potential energy.
Identify the energy transformation taking place _________ ___________ ________ ChemicalLight Electrical
What energy transformation is Homer going through in the pictures below? _______________ ______________ Chemical Mechanical
What is the energy transformation shown in the picture below? _________ _______ ________ ________ ElectricalLight Thermal Mechanical
Where do we have the most potential energy in the picture? Most kinetic energy? Most Potential = 1&5 Most Kinetic = 3
What is the formula for calculating speed? S= d t
If Mandi runs 45m in 5min, what is her average speed? S= d = 45m = 9m/min t 5min
Samuel ran 50yd in 2min. What is his average speed? S = d = 50yd = 25 yd/min t 2min
In 3hrs a motorcycle traveled 360mi. What is the motorcycle’s average speed? S = d = 360mi = 120mi/hr t 3hrs
What was the average speed of Car 1 at 45 seconds? S= d = 100cm = 2.2cm/sec t 45sec
What was the speed of car 2 at 120cm? S= d = 120cm = 2.6 cm/sec t 45sec
Look at the graphs below: Place them in order from slowest to fastest according to their speed. D, C, A, B
Draw a graph that shows a person who ran at a constant speed for 3 seconds, stops and rests for 4 seconds and then continues on at a constant speed. (label your x and y axis)
Draw a picture of a graph that shows a person running at a constant speed:
Describe what is happening in the graph below
What is a balanced force? A force that does not cause a change in motion
What is an unbalanced force? A force that causes a change in motion
Label the following pictures as either balanced or unbalanced: 300N Balanced Unbalanced
What is energy from the sun called? Solar Energy
Matter formed by plants and animals that is used as fuel is called _______________. Biomass
____________ energy comes from the splitting of Uranium atoms to release energy. Nuclear
A resource that we will eventually run out of is ________________. Non-Renewable
Moving air that causes energy is called ______________ energy. Wind
A fossil fuel found deep within Earth that is burned to release energy Coal
Heat energy obtained from deep inside the Earth is called ____________ energy. Geothermal
A resource that we will always have Renewable
Liquid fossil fuel found deep below Earth’s surface that is burned to obtain enery Oil
What are the 5 renewable energy resources? 1)Solar Energy 2) Wind Energy 3) Geothermal 4) Hydropower 5) Biomass
What are the 4 non- renewable energy resources? 1)Coal 2)Oil 3)Natural Gas 4)Nuclear Energy
Good luck on your test!!!!! Keep studying :D