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WorksheetsScience Test 3 Practice
Total questions: 27
Worksheet time: 14mins
Which part of the pan is a conductor and will feel hot?
Metal
Plastic
Which part of the pan is an insulator and will feel cool?
Metal
Plastic
Which one of these is a conductor?
aluminum
cardboard
Plastic
Rubber
Which one of these is an insulator?
Copper
Plastic
Iron
Steel
True or False? Insulators stop or slow energy flow.
True
False
True or False? Conductors allow energy to flow go.
True
False
What are the 3 main energy forms for a toaster?
Solar, Coal, Oil
Electricity, Mechanical, Thermal.
Sound, Light
Solid, Liquid, Gas
What energy form is used to toast the bread?
electrical energy
thermal energy
sound energy
light energy
The movement of the pedals and wheels represent which energy form?
light energy
mechanical energy
electrical energy
sound energy
The reflectors on the bicycle represent which energy form?
mechanical energy
sound energy
thermal energy
light energy
An energy form from the candle is making the pinwheel spin. What 2 main energy forms are involved?
mechanical, electric, sound
sound, thermal energy
thermal, mechanical
magnetism
True or False? The heated air rises up and pushes the blades of the pinwheel.
True
False
Which activity is an example of electrical energy?
A fish swimming
A leaf falling
An ipad charging
A candle burning
Which activity is an example of mechanical energy?
A leaf falling
A cell phone charging
A candle burning
A lamp
What are the 3 main energy forms?
electric, light , thermal
sound, mechanical, magnetic
solar, and thermal
solid, liquid, gas
What happens if switches 1 and 3 are opened?
All the parts will still work.
The motors will turn off.
Everything will turn off.
The bulbs will turn off.
Which statement explains the shadow?
Light travels straight until blocked by an object.
Light is refracted when it travels through different mediums.
Light can be changed into heat energy.
Light can reflect off smooth, shiny surfaces.
Which statement explains why the pencil looks bent?
Light is reflected off the water.
Light is refracted and changes speed through air and water.
Light heats up and boils the water.
The pencil is made of plastic.
Which statement is true about how oil is formed?
Living things in the sea (ocean) were buried under sediment.
Icebergs melted
A giant wind storm destroyed a forest.
Flooding soaked Earth's crust.
The hand lens makes the bug look bigger because -
light is refracted
light is reflected
light is blocked
there is no light
The object is reflecting light. The object is mot likely -
a mirror
notebook paper
a hand lens
a rock
The water makes the word look bigger because light is being -
refracted
reflected
reduced
blocked
This diagram proves that light travels -
straight until it strikes an object.
in a curved path until it strikes an object.
in a zigzag path until it strikes an object.
doesn't travel.
What will happen if the switch is opened?
Everything will stay on.
Only the bell and one bulb will stay on.
Everything will turn off.
Nothing will happen.
Coal, Oil and Natural Gas are nonrenewable fossil fuels because -
they take millions of years to form.
they form very quickly.
they are all gone.
they are difficult to find.
Which lists the correct headings for each group of substances?
Conductors, Less Dense, Dissolve (soluble)
Insulators, More Dense, Not Soluble
Magnetic, Solids, Liquids
Gas, Solid, Liquid
Coal is formed from dead plant and animal matter that has been covered by -
ice
wood
layers of sediment
gallons of water
