BI 10 ES PMA 2 Review (STO)

Multiple Choice

Which form of energy is missing in the picture?

• Radiant

• Force

• Chemical

• Electricity

Multiple Choice

Heat

• Mechanical Energy

• Thermal Energy

• Chemical Energy

• Light Energy

Multiple Choice

How do you think his hands feel and why?

(Rub your hands together)

• Cold because of temperature

• Warm because of friction

• Warm because of mechanical energy

• Warm because of light

Multiple Choice

How did the fire start?

• Sun heated the sticks

• Lit a match

• Rubbed the sticks together

• Breaking the wood

Multiple Choice

In which direction does heat transfer?

(Sing the song)

• Cold to Hot

• Hot to Cold

Multiple Choice

In which direction will heat transfer occur?

• They will remain the same temperature

• Heat will not transfer

• Heat will transfer from B to A

• Heat will transfer from A to B

Multiple Choice

In which direction will heat transfer occur?

• Heat will transfer from hands to ice

• Heat will transfer from ice to hands

• Heat will not transfer

• Heat will transfer from ice to air

Multiple Choice

Is the temperature of the ice

increasing or decreasing?

• Increasing

• Decreasing

Multiple Choice

Anything that gives off light also gives off

• Movement

• Heat

• Gas

• Electricity

Multiple Choice

Energy stored in food, gas, batteries

• Mechanical Energy

• Thermal Energy

• Chemical Energy

• Light Energy

Multiple Choice

Motion

• Mechanical Energy

• Thermal Energy

• Chemical Energy

• Light Energy

Multiple Choice

What do all of these pictures have in common?

• Chemical Energy

• Thermal Energy

• Mechanical Energy

• Light Energy

Multiple Choice

Which of the following is not a source of mechanical energy?

• Wind

• Force

• Water

• Air

Fill in the Blanks

Fill in the Blanks

Draw

All energy transformations will start with electrical.

Circle the primary transformation occurring in each picture.

Draw

All energy transformations will start with electrical.

Circle the primary transformation occurring in each picture.

Draw

Draw a wire to close this loop

Multiple Choice

Is this loop open or closed?

(Say: Open broken, closed flows)

• closed

• open

Multiple Choice

What will turning the switch on cause?

• Circuit to close

• Circuit to open

• Electricity to stop flowing

• Nothing will happen

Multiple Choice

Is the picture on the left a

conductor or insulator of electricity?

(Turn to your partner and tell them how you know)

• Conductor

• Insulator

Multiple Choice

Will the picture on the right be a

good conductor or insulator of heat?

(Turn to your partner and tell them how you know)

• Conductor

• Insulator

Multiple Choice

What must be the charges of these 2 balloons?

• positive-

  uncharged

  + 0

• negative-Uncharged

  - 0

• negative- positive

  - +

• negative- negative

  - -

Multiple Choice

Why does this negatively charged balloon

stick to the wall?

• The wall is negatively

  charged

• The wall is positively

  charged

• The wall is uncharged

• The wall is both negatively and positively charged

Draw

Draw attract and repel T-Chart by adding combinations of charges

(work with your partner)

Multiple Choice

Vibrations of matter

• Electrical Energy

• Thermal Energy

• Sound Energy

• Light Energy

Multiple Choice

Fast vibrations of matter

• Low Volume

• Low Pitch

• High Volume

• High Pitch

Multiple Choice

How would you describe the picture on the right?

• Low Volume

• Low Pitch

• High Volume

• High Pitch

Multiple Choice

Travels in a straight line until it hits or strikes something

• Mechanical Energy

• Thermal Energy

• Chemical Energy

• Light Energy

Multiple Choice

When light hits something it can bounce off

(Turn and give your partner an example)

• Transparent

• Refraction

• Reflection

• Absorb

Multiple Choice

Which is not an example of light refracting?

(Turn and tell your partner the 3 Bs)

• Object looks big

• Light taken in by object

• Object looks bent

• Object looks broken

Multiple Choice

Objects can form a mirror image

• Transparent

• Refraction

• Reflection

• Absorb

Multiple Choice

What is light doing?

• Transparent

• Refraction

• Reflection

• Absorb

Multiple Choice

What is light doing?

• Transparent

• Refraction

• Reflection

• Absorb

Multiple Choice

What is light doing?

• Transparent

• Refracting

• Reflection

• Absorb

Multiple Choice

Radiant energy from the Sun can heat objects

and when the Sun is not present, heat may be

gained or lost?

• Gained

• Lost

Multiple Choice

Why is he sitting under the tree?

• Gain heat

• Lose heat

• Reflect heat

• Refract heat

​If heat flows easily through a substance, what is the substance considered to be?

A. bad substance.

B. good conductor.

C. poor conductor.

D. good insulator.

Multiple Choice

What is your response...

• A

• B

• C

• D

​Jenny built a circuit with a gap in it to test if certain objects conduct electricity. Jenny closed the gap in the circuit with each of the objects. Then, she observed an electric fan in the circuit to see if it started spinning. Jenny recorded her data in the table below.

Which of the following is an electrical conductor?

A. Plastic fork

B. Copper penny

C. Wooden toothpick

D. Rubber band

Multiple Choice

What is your response...

• A

• B

• C

• D

​Charlotte is doing a science project to find out what materials complete the circuit shown below to make the bell ring. She closed the circuit with a plastic pen cap and then a wooden craft stick. Why did the bell not ring? A. The plastic and the wood are insulators. B. The plastic and the wood are conductors. C. The plastic and the wood have too much power. D. The plastic and the wood were wet.

Multiple Choice

What is your response...

• A

• B

• C

• D

​Electrical cords are made up of two layers. The wire inside is made of metal. This is surrounded by a cover made of plastic or rubber. How do the wire and cover compare in their ability to conduct or insulate electricity?

A. The wire is a conductor, and the cover is an insulator.

B. Both the wire and the cover are insulators.

C. The wire is an insulator, and the cover is a conductor.

D. Both the wire and the cover are conductors.

Multiple Choice

What is your response...

• A

• B

• C

• D

​Frying pans are good conductors of heat. A scientist developed four new materials to be used for making frying pans. He made rods of equal mass and length from each material. He tested their heat conductivity by exposing one end of each rod to the same amount of heat over the same duration of time. He measured the temperature change at the other end of the rod. The data he collected is shown in the table below. Based on the data collected, select the substance that would make the best frying pan.

A. Material A

B. Material B

C. Material C

D. Material D

Multiple Choice

What is your response...

• A

• B

• C

• D

​Lewis has some play dough. He puts a thermometer in the play dough and then holds the dough in his hand, being careful not to touch the thermometer If heat flows from his hands to the play dough, what will happen to the thermometer reading?

A. The temperature will go down.

B. The temperature will go up.

C. The temperature will not change.

D. The temperature will go up first and then down.

Multiple Choice

What is your response...

• A

• B

• C

• D

​Jasmine has toast for breakfast every day. As soon as the toast pops out of the toaster, she puts butter on it. If she does it quickly, she can spread the butter over the toast with her knife, and it melts into the toast. Why does the butter melt?

A. because heat from the hot knife moves into the cool butter

B. because the pressure of her knife softens the butter

C. because heat from Jasmine's hand moves into the cool butter

D. because heat from the hot toast moves into the cool butter

Multiple Choice

What is your response...

• A

• B

• C

• D

​Kayla boils a pot of water. What will happen when she sticks a metal spoon that is at room temperature into the boiling water?

A. Heat energy from the boiling water will cause the spoon to dissolve.

B. The metal spoon will soak up the boiling water, causing the spoon to increase in temperature.

C. Heat energy from the metal spoon will flow into the water, causing the spoon to decrease in temperature.

D. Heat energy from the water will flow to the metal spoon, causing the spoon to increase in temperature.

Multiple Choice

What is your response...

• A

• B

• C

• D

​Sandpaper is a type of rough material that is rubbed on other surfaces to make them smoother. Ms. Fonger is rubbing a piece of sandpaper on wood that will be used to make a table. What kind of energy is being produced?

A. chemical energy

B. light

C. heat

D. electrical energy

Multiple Choice

What is your response...

• A

• B

• C

• D

​On a very cold day, people can often be seen rubbing their hands together. Why do people do this?

A. This creates friction, which makes their hands numb.

B. They do this to take their minds off the cold. It doesn't actually do anything.

C. This creates static electricity, which helps warm their hands.

D. This creates friction, which produces heat to warm their hands.

Multiple Choice

What is your response...

• A

• B

• C

• D

​Which statement describes the flow of energy through the television set shown above?

A. Electrical energy changes into light and sound energy.

B. Heat energy changes into electrical energy and sound energy.

C. Light energy changes into sound energy and electrical energy.

D. Sound energy changes into light energy and electrical energy.

Multiple Choice

What is your response...

• A

• B

• C

• D

​George is playing his electric keyboard, and his friend Tonya can hear the song he is playing. Which statement describes the flow of energy through the keyboard as George plays?

A. Light energy changes into electrical energy.

B. Sound energy changes into electrical energy.

C. Electrical energy changes into sound energy.

D. Heat energy changes into sound energy.

Multiple Choice

What is your response...

• A

• B

• C

• D

​Mechanical energy is energy an object has due to its motion or position. Which object converts electrical energy to mechanical energy?

A. an electric blanket

B. a light bulb

C. a television

D. a fan

Multiple Choice

What is your response...

• A

• B

• C

• D

​When the blades of a fan move, they have mechanical energy. This mechanical energy comes from A. electrical energy flowing into the fan from the wall outlet. B. heat energy flowing into the fan from the air. C. sound energy flowing into the fan from a radio. D. light energy flowing into the fan through the window.

Multiple Choice

What is your response...

• A

• B

• C

• D

​How can you tell if a car is moving?

A. The car has a motor.

B. The car has wheels.

C. The car is changing position.

D. The car is in the driveway.

Multiple Choice

What is your response...

• A

• B

• C

• D

​When windmills—which are sometimes called wind turbines—spin around, they can be used to generate electrical energy. What form of energy captured directly from moving air causes the blades of the windmill to move.

A. Heat

B. Mechanical

C. Radiation

D. Electricity

Multiple Choice

What is your response...

• A

• B

• C

• D

​The machines in a hydroelectric dam produce electrical energy for homes. Where do the machines get their energy from? A. moving water B. burning fuel C. sunlight D. the wind

Multiple Choice

What is your response...

• A

• B

• C

• D

​A water wheel is a machine that turns. Where does the energy that turns a water wheel come from? A. the wind B. moving water C. burning fuel D. sunlight

Multiple Choice

What is your response...

• A

• B

• C

• D

​If a solid stick of butter is placed outside in sunlight for an hour, what change will occur as result of the sun's energy?

A. butter will change from solid to liquid

B. butter will change from liquid to solid

C. butter will change from solid to gas

D. butter will remain in solid form

Multiple Choice

What is your response...

• A

• B

• C

• D

​A wool sweater is a positively charged object. Packing peanuts, like those shown in the picture, are small, negatively charged pieces of foam. What happens when a packing peanut is held near a wool sweater? A. The peanuts are attracted to the sweater and follow it. B. The peanuts are not affected at all by the sweater. C. The peanuts are pushed away by the sweater and move away from it. D. The peanuts break apart when touching the sweater.

Multiple Choice

What is your response...

• A

• B

• C

• D

​What will happen to the two objects in the picture as they are slowly moved toward each other? A. The objects will both be pushed in the same direction. B. The objects will not affect each other. C. The objects will push away from each other. D. The objects will be pulled toward each other.

Multiple Choice

What is your response...

• A

• B

• C

• D

​The picture below shows two electrically charged objects. What will happen to the two objects in the picture as they are slowly moved toward each other? A. The objects will not affect each other. B. The objects will push away from each other. C. The objects will be pulled toward each other. D. The objects will both be pushed in the same direction

Multiple Choice

What is your response...

• A

• B

• C

• D

​Fred rubs a glass rod against a piece of silk, which causes the glass rod to become positively charged. Fred moves the charged rod close to a small, uncharged piece of paper. The paper moves toward the rod. Based on this information, what can Fred determine about charged objects?

A. Charged objects can push uncharged objects away.

B. Charged objects can only attract other charged objects.

C. Charged objects can attract uncharged objects.

D. Charged objects can destroy uncharged objects.

Multiple Choice

What is your response...

• A

• B

• C

• D

​Which of these is a complete closed circuit that electricity will flow through?

A. X

B. Z

C. Y

D. W

Multiple Choice

What is your response...

• A

• B

• C

• D

​What is always needed for electricity to flow in a circuit?

A. a circuit needs a battery

B. a circuit needs to be closed

C. a circuit needs a light bulb

D. a circuit needs to be open

Multiple Choice

What is your response...

• A

• B

• C

• D

​Light tends to travel in a straight line. What might cause light to stop traveling in a straight line?

A. if it is very cold out

B. if the light is traveling through water

C. if it is very sunny out

D. if it strikes another object

Multiple Choice

What is your response...

• A

• B

• C

• D

​If you shine a flashlight on a mirror, what will happen to most of the light?

A. The mirror will bend it.

B. The mirror will refract it.

C. The mirror will reflect it.

D. The mirror will absorb it.

Multiple Choice

What is your response...

• A

• B

• C

• D

​A prism, like the one shown below, can cause light to separate into different colors. What happens to the light when it passes through the prism that explains the formation of a rainbow?

A. The light is bent and redirected by the prism.

B. The light is absorbed by the prism

C. The light is reflected by the prism.

D. The light travels in a straight line through the prism

Multiple Choice

What is your response...

• A

• B

• C

• D

​The pencil in the picture below is completely straight, but it appears not to be. Why does the pencil look like it is broken?

A. The light traveling is bent as it moves from the air to the water.

B. The water reflects all of the light that comes into contact with it.

C. The water changes the shape of the pencil.

D. The water absorbs all of the light that hits the pencil.

Multiple Choice

What is your response...

• A

• B

• C

• D

​Why is the water in a swimming pool warmer after sunlight has been shining on it all day? A. The water has refracted some of the light. B. The water has not been hit by light. C. The water has absorbed some of the light. D. The water has reflected some of the light.

Multiple Choice

What is your response...

• A

• B

• C

• D

​In the picture below, the impalas can be seen in the water. What happens to light at the surface of the water that creates the upside down image of the impalas? A. The light is refracted. B. The light is turned into sound. C. The light is absorbed. D. The light is reflected.

Multiple Choice

What is your response...

• A

• B

• C

• D

​Jamie strums the strings on a guitar and hears sound. What can Jamie conclude about the strings?

A. They are cold.

B. They are a bright color.

C. They are vibrating.

D. They are new.

Multiple Choice

What is your response...

• A

• B

• C

• D

​Why do the thin strings on a guitar produce a sound with a higher pitch than the thick strings on a guitar produce?

A. The thin strings vibrate slower than the thick strings.

B. The thin strings vibrate faster than the thick strings.

C. The vibration of the thin strings is stronger than the thick strings.

D. The vibration of the thin strings is weaker than the thick strings.

Multiple Choice

What is your response...

• A

• B

• C

• D

​Gemma plays her cello by moving the bow across the strings. Which of these could be done to change the pitch of the cello's sound? A. stretch the strings tighter B. move the bow faster C. play while standing up D. play in a different room

Multiple Choice

What is your response...

• A

• B

• C

• D

​Garrett has four strings that are the same thickness and are made of the same material. Garrett cuts the strings to different lengths and pulls them to the same tightness. When he plucks the strings with his finger, which string will have the highest pitch?

A. It is impossible to say.

B. They will all have the same pitch.

C. The longest string will have the highest pitch.

D. The shortest string will have the highest pitch.

Multiple Choice

What is your response...

• A

• B

• C

• D

​Mariah learned in science class that sound is made from vibrations. When an object vibrates more quickly, it produces a higher-pitched sound. Mariah designed an investigation using a guitar. The strings on a guitar each have a different thickness. Mariah labeled the strings from 1 to 5, making the thinnest string #1 and the thickest string #5. Then she plucked each string on the guitar and wrote down the number of the strings in order from lowest pitch to highest pitch.

Based on her data, Mariah could conclude that string #1

A. vibrates the fastest.

B. does not vibrate.

C. is the longest string.

D. has the loudest volume.

Multiple Choice

What is your response...

• A

• B

• C

• D

​Charlie took 6 minutes to run a mile. His sister, Christina, took 13 minutes to run a mile. Which of the following is true?

A. Charlie ran faster than Christina.

B. Christina ran faster than Charlie.

C. It cannot be determined who ran faster. D. Charlie and Christina ran at the same speed.

Multiple Choice

What is your response...

• A

• B

• C

• D

​Ebony took 10 minutes to run a mile. His sister, Ian took 20 minutes to run a mile. Which of the following is true?

A. Ebony ran the same distance but took a longer time.

B. Ian ran the same distance but took a longer time.

C. Ebony ran a different distance in a shorter amount of time.

D. Ian ran a different distance in a shorter amount of time.

Multiple Choice

What is your response...

• A

• B

• C

• D