Week 26 Benchmark Review

Fill in the chart below:

Substance Element Compound # of atoms

O3

Fe3O4

CaCO3

He

✔ 3✔

✔✔

7

51

What are 4 properties of non-metals?

1) Poor Conductor2) Low Luster

3) Brittle4) 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/Ductile3) High Luster4) 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

_________ ___________ ________Chemical LightElectrical

What energy transformation is Homer going through in the

pictures below?

_______________ ______________Chemical Mechanical

What is the energy transformation shown in the picture below?

________________ ________ ________Electrical Light Thermal Mechanical

Where do we have the most potential energy in the picture? Most kinetic

energy?

Most Potential = 1&5Most 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 300N

Balanced

Balanced 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 Energy2) Wind Energy3) Geothermal4) Hydropower

5) Biomass

What are the 4 non-renewable energy

resources?

1) Coal2) Oil3) Natural Gas4) Nuclear Energy

Good luck on your test!!!!! Keep studying :D