Energy Test Review - TeacherWeb

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					Unit 5 Lessons 1 & 2
Energy Test Review
Q1

Which of these shows chemical
 energy being used to produce
 kinetic energy?
 (a) turning a light switch to turn on
 a lamp
 (b) baking cookies in an oven
 (c) using gasoline to run an engine
A1

(c) using gasoline to run an
 engine
Q2

Which type of energy is due to
 the movement of electrons?
A2

Electrical Energy
Q3

What could you do to decrease
 the thermal energy of an
 object?
A3

Cool it
Q4

What is an experiment you
 could do to show that plants
 need light to grow?
A4

Various answers
 Example: grow plants in light
  and plants without light and
  compare how they grow
Q5

What natural source of energy
 would cause a swimming pool
 to warm up in the daytime?
A5

Solar Energy
Q6

If a thermometer is placed in a
 glass of ice water, how will the
 thermal energy be effected?
A6

A decrease in thermal energy,
 causing the liquid to contract.
Q7

When you push a spring
 together, before releasing it,
 what type of energy do you
 have? Kinetic or potential?
A7

Potential Energy
Q8

Which of the following can only
 be seen because of light
 reflecting off of it from a source
 other than itself?
 A) sun          B) lightning
 C) flashlight   D) cloud
A8

D) cloud
Q9

A thermometer measures
 which kind of energy?
A9

Thermal Energy
Q10

What conditions are best for a
 solar cooker to heat food?
A10

When a solar cooker is placed
 outside in a sunny location,
 with no shade.
Q11

When a balloon is rubbed on a
 wool cloth, it will receive a
 negative charge. What
 happens when this balloon is
 placed near a wall and why?
A11

The balloon sticks to the wall
 because the negative charged
 object is attracted to an object
 with no charge.
Q12

Which energy transformation
 happens when a fan is plugged
 into a wall and turned on?
A12

Electrical energy into energy of
 motion
Q13

What is the dependent variable in
 the following scientific question?
  What is the effect of the amount of
   times (5 or 20) a balloon is rubbed on a
   piece of wool, on the number of cereal
   pieces the balloon will pick up?
A13

The number of cereal pieces the
 balloon picks up.
Q14

What is the independent variable
 in the following scientific
 question?
  What is the effect of the amount of
   times (5 or 20) a balloon is rubbed on a
   piece of wool, on the number of cereal
   pieces the balloon will pick up?
A14

The number of rubs (5 or 20) on
 the piece of wool.
Q15

What are 3 predictions for this
 experiment?
  What is the effect of the amount of
   times (5 or 20) a balloon is rubbed on a
   piece of wool, on the number of cereal
   pieces the balloon will pick up?
A15

1. The balloon with 5 rubs on the
 wool will pick up more cereal.
2. The balloon with 20 rubs on the
 wool will pick up more cereal.
3. The balloon with 5 rubs will pick
 up the same number of cereal
 pieces as the balloon with 20 rubs.

				
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posted:9/23/2013
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