Physical Properties of Matter
Keely wants to find out if a wood block and a large coin will sink or float. Which would be the most useful step for her to follow?
A. Measure the masses of the block and the coin.
B Place the block and the coin in water.
C Touch the block and the coin and compare their textures.
D Place the block and the coin next to a magnet.
B Place the block and the coin in water.
True or False: Gravity is a noncontact force. Explain your reasoning.
True/False because ____________.
True because gravity acts around us all the time.
When a room fills with smoke, a smoke detector will make a loud, harsh sound. Which other object makes sounds for a similar reason?
A smartphone
B marching band
C police siren
D burning wood at a campfire
C police siren
Ayaan claims that the air can have mechanical energy. Observing which object in the schoolyard provides the strongest evidence to support his claim?
A the flag
B the basketball
C the ball on the hill
D the bicycle
A the flag
A red ball and a blue ball are placed in a large beaker of water, but only the red ball floats. The blue ball sinks. Observe the results. What conclusion do the results support?
A. The red ball has less mass than the blue ball.
B The red ball floats and the blue ball sinks.
C The red ball is colder than the blue ball.
D The red ball is magnetic and the blue ball is not magnetic.
A. The red ball has less mass than the blue ball.
Julio and his friend Olivia are each pulling hard on a garden cart, but the cart is not moving. How do you explain this observation? Enter words from the list to complete the explanation.
Sentence: The two friends are pulling with equal ____, but the _____ is opposite.
Word Bank: direction, push, side, strength
The two friends are pulling with equal strength, but the direction is opposite.
The drum will not make a sound until it is hit. What happens when the drum is hit?
A The drum begins to vibrate.
B The drum stops moving.
C The drum becomes warmer.
D The drum releases light into the air
A The drum begins to vibrate.
When does a baseball have the LEAST mechanical energy?
A when it is heading from the pitcher to the batter
B after the batter strikes it, and it flies toward the outfield
C after it is caught in the mitt of a fielder
D when a fielder throws it back to the pitcher
C after it is caught in the mitt of a fielder
Theo is given a sample of matter in a container. What test will show that the sample is a gas and not a liquid or solid?
A. The sample becomes smaller when its container is squeezed.
B The sample changes shape when it is poured into a new container.
C The sample has a very small mass.
D The sample has a very warm temperature
A. The sample becomes smaller when its container is squeezed.
Velma holds a magnet high above some steel paper clips. Then she slowly lowers the magnet. What does she demonstrate about magnetism?
A. Magnetism acts only when objects are in contact.
B Magnetism can act across a distance.
C Magnetism only pulls downward, in the same direction as gravity.
D Magnetism can only push objects, not pull them.
B Magnetism can act across a distance.
What do light and sound have in common? Enter words from the list to complete the sentence.
SS: Both light and sound are forms of ___ that people often use to send _____.
Word Bank: energy, messages, water, matter, temperature
Both light and sound are forms of energy that people often use to send messages.
Cheetahs hunt and depend on many kinds of prey, including antelopes and gazelles. When does the body of a cheetah have the most mechanical energy?
A when the cheetah is hiding in a tree as it watches prey
B after the cheetah stops chasing its prey
C when the cheetah is chasing prey at a fast speed
D when the cheetah is warming its body in sunlight
C when the cheetah is chasing prey at a fast speed
Why is it helpful to use both wood and glass to build a house? Enter words from the list to complete the sentence.
Sentence: Wood is ___ than glass, but the glass allows you to _____ through it.
Word Bank: break, punch, stronger, lighter, see, weaker
Wood is stronger than glass, but the glass allows you to see through it.
Simone is pushing her friend on a swing. Sometimes, she pulls back on the swing. What can she show about pushes, pulls, and motion? Select THREE correct answers.
A The swing can keep moving without a push or pull.
B Either a push or a pull could make the swing start moving.
C Either a push or a pull could make the swing stop moving.
D Pushing the swing always makes it move faster.
E Pushing the swing harder can make it rise higher.
B Either a push or a pull could make the swing start moving.
C Either a push or a pull could make the swing stop moving.
E Pushing the swing harder can make it rise higher.
Jaylin and his mother let a pie cool by a window. As the pie cools, how does its energy change? Enter words from the list to complete the sentence.
SS: The pie ____ a form of energy called ____ energy.
Word Bank: electrical, light, motion, gains, loses thermal
The pie loses a form of energy called thermal energy.
A blender uses rotating blades to chop food into pieces. Ramon wants to use a blender to investigate mechanical energy. He begins by filling the blender with raw vegetables. What should Ramon observe and compare when the blender runs at its slow, medium, and fast settings?
A the taste of the vegetables after they are blended
B the heat that the blender releases
C the sizes of the vegetable pieces
D the mass of the blended vegetables
C the sizes of the vegetable pieces
Lashawn takes a metal can of orange juice out of the refrigerator. Later, he observes tiny, clear droplets of water on the surface of the can. What is the best explanation for this observation?
A Juice leaked through the metal of the can.
B Pieces of the metal changed into water.
C Ice on the can melted into droplets.
D Water vapor in the air condensed on the cold can.
D Water vapor in the air condensed on the cold can.
Theo is pushing against the wall of the school building. Which statement about pushes is he demonstrating?
A Pushes can cause an object to begin moving.
B Pushes can cause an object to stop moving.
C Pushes do not always cause a change in motion.
D Pushes can make an object move faster or slower
C Pushes do not always cause a change in motion.
What is light? Enter words from the list to complete the sentences.
Sentence: Light is a form of ____. Light will travel in a ____ path from its source.
Word bank: curved, energy, straight, dark, matter, water
Light is a form of energy. Light will travel in a straight path from its source.
In bowling, a heavy ball rolls into the pins and knocks them down. As this happens, what changes to mechanical energy occur? Select TWO correct answers.
A The pins gain mechanical energy.
B The pins lose mechanical energy.
C The ball gains mechanical energy.
D The ball loses mechanical energy.
E The wood floor gains mechanical energy.
F The wood floor loses mechanical energy.
A The pins gain mechanical energy.
C The ball gains mechanical energy.