Changes in Materials
Seeing Sound
Air & Water Movement
Objects in Motion
Physical LABS
100
Which of the following would be a chemical change?
a. A piece of wood being nailed to another piece of wood.
b. A piece of wood burning in a stove to heat some rooms.
c. A piece of wood being broken up into smaller pieces for firewood.
d. A piece of wood being ground up and made into mulch for a garden.
b. A piece of wood burning in a stove to heat some rooms.
100
How could you increase the pitch of a sound produced by an object?
A. Make the object vibrate faster.
B. Make the object vibrate slower.
C. Make the object vibrate louder.
D. Make the object vibrate quieter.
A. Make the object vibrate faster.
100
The energy of falling water can be converted into different forms of usable energy. Which of these can be generated from falling water?
A. hydroelectric energy
B. fossil fuels
C. solar energy
D. wind energy
A. hydroelectric energy
100
Cars, bicycles, and people can all be objects in motion. What is it about an object in motion that is constantly changing?
A. speed
B. velocity
C. position
D. acceleration
C. position
100
The table below shows the temperatures of the materials after 5 min.
Which is the best conductor?
A. Material 1
B. Material 2
C. Material 3
D. Material 4
B. Material 2
200
Which of the actions is a chemical reaction?
a. sugar dissolving
b. sugar becoming caramel
c. a stick piercing an apple
d. caramel covering the apple
b. sugar becoming caramel
200
Madison hits a drum with a drumstick and makes it vibrate. Then she rests her hand on the drum and stops the vibration. What happens to the sound of the drum?
A. The sound stops because the vibrations have stopped.
B. The sound stops because it cannot pass through her hand.
C. The sound becomes clearer because the vibrations have stopped.
D. The sound decreases in pitch because the vibrations have stopped.
A. The sound stops because the vibrations have stopped.
200
Which is NOT an example of energy causing a change in motion?
A. A car burns gasoline so it can move.
B. A child pulls a wagon full of packages.
C. A student uses a pencil to write a letter.
D. A library book rests on a high bookshelf.
D. A library book rests on a high bookshelf.
200
Hit a ball and you set it in motion. Pedal a bicycle and you set it in motion. Push a swing and you set it in motion. What must always be true of any object that is in motion?
A. It is moving forward.
B. It is changing its position.
C. It is changing its direction.
D. It is moving at a constant speed.
B. It is changing its position.
200
The picture below shows that Jasper's mom left her metal keys in the Sun.
What will happen to the keys if they are left in the Sun for 15 minutes?
A. They will melt.
B. They will freeze.
C. They will cool off.
D. They will warm up.
D. They will warm up.
300
Which is an example of a physical change?
A. nail rusting
B. glass breaking
C. dead plant rotting
D. candle wick burning
B. glass breaking
300
Helena conducted the experiment shown below. When she hit the drum with the drumstick, the paper clip flew into the air. Which of these statements best describes what Helena demonstrated with her experiment? 
A. Vibrating objects make sound.
B. Movement does not require energy.
C. Sound energy can change into electric energy
D. Vibrating objects do not change their pitch and loudness.
A. Vibrating objects make sound.
300
Christina knows that wind and water are two sources of energy. Which of the following statements can Christina say is true about both wind and water?
A. They are limited in supply on Earth.
B. They can be used to generate electricity.
C. They can replace all other energy sources.
D. They can be used to produce solar energy.
B. They can be used to generate electricity.
300
Danny kicks a soccer ball as shown below.
What will most likely happen to the speed of the soccer ball?
A. It will stay the same.
B. It will slowly decrease.
C. It will increase, then decrease.
D. It will decrease, then increase.
C. It will increase, then decrease.
300
Which two tools would you need to find the speed of an object in motion?
A. ruler and thermometer
B. scale and thermometer
C. meter stick and stopwatch
D. graduated cylinder and scale
C. meter stick and stopwatch
400
Which piece of evidence is not a chemical change?
A. A change that gives off heat.
B. A change in size, shape, or state.
C. A change that causes bubbles to form.
D. A change that makes a new substance.
B. A change in size, shape, or state.
400
The picture below shows a rubber band stretched to two different lengths. The rubber band can be pulled to the side and let go to make a sound. What would you predict about the pitch of the sound of rubber band B compared to rubber band A?
A. The pitch of B is higher than the pitch of A.
B. The pitch of B is louder than the pitch of A.
C. The pitch of B is lower than the pitch of A.
D. The pitch of B is softer than the pitch of A.
C. The pitch of B is lower than the pitch of A.
400
Roscoe is riding his bike across town. Which of the following actions does NOT demonstrate a change caused by Roscoe applying energy to the bicycle?
A. waiting for traffic at a stop sign
B. decreasing speed going up a hill
C. turning a corner from north to east
D. moving in one direction along the street
A. waiting for traffic at a stop sign
400
A car travels down a straight road at 35 mph. It slows to a stop at a stoplight. Which of the following changes about the motion of the car?
A. speed
B. direction
C. speed and direction
D. direction and position
A. speed
400
Which describes how the you calculate the speed of an object in motion?
A. Add distance traveled to time passed.
B. Divide distance traveled by time passed.
C. Multiply distance traveled by time passed.
D. Subtract distance traveled from time passed.
B. Divide distance traveled by time passed.
500
Which of the following is an example of a physical change?
A. a piece of burnt paper
B. a picture of melting ice
C. a picture of baked cookies
D. a piece of wire that has rusted
B. a picture of melting ice
500
When you hear sound, it has a pitch. Pitch can be changed. What is change in pitch most related to?
A. how soft the vibration is
B. how loud the vibration is
C. how long the vibration continues
D. how fast the vibration moves back and forth
D. how fast the vibration moves back and forth
500
- Carmen makes this paper airplane to demonstrate how energy can cause motion.
Which of these makes the airplane move forward?
A. pushing force of air
B. pulling force of gravity
C. pulling force of inertia
D. pushing force from the hand
D. pushing force from the hand
500
Which statement is true about the object in motion in the picture?
A. The object is changing only its position.
B. The object is changing only its direction.
C. The object is changing both its position and direction.
D. The object is changing neither its position nor direction.
C. The object is changing both its position and direction.
500
Which two measurements are needed in order to calculate the speed of a moving object?
A. height of the moving object; mass of the moving object
B. height of the moving object; distance traveled
C. time traveled; mass of the moving object
D. distance traveled; time traveled
D. distance traveled; time traveled