Font size
WorksheetsGames Physical Science
Total questions: 81
Worksheet time: 1hrs 8mins
A student predicts that water is denser than iron and cork. To test the prediction, the student pours 200 mL of water in a beaker and places a cork and an iron nail in the beaker. The image shows the student’s observations.
Is the student’s prediction correct, and why?
No. The iron nail sinks in water, indicating that iron is denser than water.
No. The cork floats on water, indicating that cork is denser than water.
Yes. The cork floats on water, indicating that water is denser than cork.
Yes. The iron nail sinks in water, indicating that water is denser than iron.
A teacher prepares to dissolve 50 g of a solute. How does the surface area of the solute affect the rate at which the solute dissolves?
The larger the total surface area of the solute, the faster the solute dissolves.
The rougher the surface area of the solute, the faster the solute dissolves.
The smaller the total surface area of the solute, the faster the solute dissolves.
The smoother the surface area of the solute, the faster the solute dissolves.
A student places a 200 g chocolate bar in a pan, heats the pan, and observes that the bar melts. The student removes the pan from the heat and leaves the chocolate undisturbed to cool. After an hour, the student observes that the chocolate has become a hard solid with a mass of 200 g.
How can the student classify this change?
It is a reversible change because the mass of the chocolate is the same after cooling.
It is an irreversible change because the shape of the chocolate changes.
It is a reversible change because the chocolate returns to its solid state after cooling.
It is an irreversible change because the solid chocolate changes into a liquid.
A student uses the setup shown to perform an experiment
The student observes that as marble chips are dissolved in the acid, bubbles start to form. The student also notices that the flask is warm to touch.
What evidence identifies the type of change taking place in the experiment?
The rise in temperature indicates a chemical change.
The dissolving marble chips indicate a physical change.
The rise in temperature indicates a physical change.
The change of phase of the marble chips indicates a chemical change.
A student places four same-sized blocks (P, Q, R, and S) made of different materials in a beaker with water. The student observes what happens to each block and makes a list of conclusions.
What conclusions are correct?
1 and 3
2 and 3
1 and 2
2 and 4
The table shows the physical properties of two materials (X and Y).
Which statement is correct?
Both Materials X and Y are liquids.
Material X is a solid, and Material Y is a gas.
Material X is a liquid, and Material Y is a gas.
Both Materials X and Y are solids.
A student makes two solutions (A and B). Solution A contains 200 mL of water and 20 g of sugar. Solution B contains 100 mL of water and 20 g of sugar.
Which solution is more concentrated, and why?
Solution A; the amount of solvent is greater in solution A than in solution B.
Solution A; the amount of solute is greater in solution A than in solution B.
Solution B; the amount of solvent is less in solution B than in solution A.
Solution B; the amount of solute is less in solution B than in solution A.
Which activity will result in a new substance when completed?
softening butter
chopping wood
breaking a pencil in half
roasting a marshmallow
Potassium nitrate is a salt that dissolves in water. A teacher fills three beakers with 100 mL of water at different temperatures (20°C, 40°C, and 60°C) and adds salt to each beaker in small amounts until no more salt can be dissolved. The graph shows the amount of salt dissolved in each beaker.
What can be concluded from the graph?
The solubility of the salt increases with temperature.
Water dissolves salts only at high temperatures.
The salt needs large amounts of water to be dissolved.
More salt dissolves in water at lower temperatures.
Examine substances X and Y, each placed in identical containers.
Which table correctly classifies each substance?
A student conducts an activity to compare the hardness of three materials, M, N, and O. The student knows that harder materials scratch softer materials. The student rubs each material against the surfaces of the other two materials and records observations in a table.
How should the materials be sequenced to show decreasing order of hardness?
Material O; Material M; Material N
Material M; Material O; Material N
Material M; Material N; Material O
Material O; Material N; Material M
A student makes a partial circuit by connecting a battery with a light bulb using wires. The student then completes the circuit using different materials to check if the light bulb glows, as shown in the setup and table.
Which material can be classified as an electrical conductor?
plastic spoon
rubber band
iron paper clip
strand of wool
A student conducts an investigation on dissolving juice mix powder in water and records the results in a table.
The student conducts a second trial and notices that the juice mix dissolves at a slower rate compared to Trial 1. Which conditions does the student most likely use in the second trial?
. A researcher places two objects (M and N) into a large container filled with water. The image shows what happens to objects M and N.
Which statement explains why object M floats and object N sinks?
The density of object M is more than water, and the density of object N is less than water.
The densities of objects M and N are less than water.
The density of object N is more than water, and the density of object M is less than water.
The density of object M is more than object N.
A student labels four glasses (N, O, P, and Q) containing four different solutions. The table shows the amounts of salt and sugar in each glass.
Which glass has the most concentrated solution?
Glass O
Glass P
Glass N
Glass Q
The table shows four activities.
Which activities shows reversible physical changes?
Activities 1 and 4
Activities 1 and 2
Activities 2 and 4
Activities 2 and 3
) It is easier to float an object in seawater than in fresh water. The reason is that saltwater is denser. So objects that cannot float in fresh water may be able to float in seawater. Which term describes this property?
Density
Viscosity
Buoyancy
Salinity
The students worked on their boats and finally had the first trial run. Boat 1 and Boat 2 were in hot competition. Boat 1 had a V-shaped hull while Boat 2 had a wide U-shaped hull. Boat 3 also had a wide U-shaped hull. Based on the results of trial #1, what suggestion(s) would you give to Team 3?
Cover the exterior with tape
Lower the sides of the hull and make the base larger
Try and V-shaped hull
Rework the hull making sure there are no leaks
Sugar is added to tea to make sweet tea. In chemical terms the sugar is the ___________ and the tea (mostly water) is the...
solute, solvent
endothermic, exothermic
reactant, product
chemical, dissolution
Trail mix is just that - a mix. Or in science terms, it is a mixture. One way you can tell this is a mixture is that you can
eat all the parts
separate the parts by their properties
measure the amount of the parts
identify the parts that make up the mixture
The concentration of a solution can be increased by
filtering the solution
adding more solute
it is impossible to change the concentration of a solution
adding more solvent
Sam and Ben are experimenting with solutions in science class. Their teacher asked them to draw a model of a solution.The blue circles are the solute. Think sugar. The green circles are the solvent. Think water. Then she asked the boys to redraw their model, but as a MORE concentrated solution. What should the boys draw?
no blue circles; more green circles
more green circles; the same amount of blue
more blue and more green circles
more blue circles; the same amount of green
The image is a model of a solution. The blue circles are the solute. Think sugar. The green circles are the solvent. Think water. If you wanted to model a less concentrated solution, what would your model look like?
It would have more green circles
It would have no green circles
It would have more blue and green circles
It would have more blue circles
Jake wants to quickly dissolve Gatorade in a pitcher. What would help Jake INCREASE the rate at which his Gatorade dissolves?
adding more Gatorade
cooling the mixture
stirring the mixture
adding sugar
Usually, when the temperature is increased, what will happen to the rate of dissolving?
It will increase
It will remain the same
It will stop
It will decrease
Maddie wanted to make a sugar-water solution to put in her hummingbird feeder. She found some sugar cubes and was about to drop them into a glass of water, when her brother suggested crushing the cubes before mixing. Was this a good suggestion? Why or why not?es
Yes. Crushing the cube results in more sugar in the water.
No. Crushed or cubed does not matter.
Yes. Crushing the sugar cube provides more contact between sugar and water.
No. The particle size does not matter as long as she stirs the mixture of sugar and water.
Anna is making sweet tea for the class picnic. She boils the water and then soaks the tea bags to get the perfect color. She decides to add sugar to the tea to sweeten it and ice to make it cold. When should she add the sugar?
it will not matter when she adds the sugar
before the tea cools to room temperature
after the tea cools to room temperature
after the tea cools and ice cubes have been added.
During science class, while studying mixtures, you mix together table salt and sand. Your teacher challenges you to separate the salt from the sand. What property could you use and how would you use it?
solubility; Add water to the mixture solubility; Add water to the mixture and dissolve the salt. and dissolve the salt.
particle size; Pour the mixture through a paper filter to separate the two.
color; Pick out one of the two solids by using color to guide you.
density; The two will form two layers. Scoop out the top layer.
Carol accidentally dropped a container of salt, sodium chloride into a container of a dark gray metal. Carol knows that the salt will dissolve in water, but she is afraid to pour water over the mixture. On a hunch, she takes a magnet and runs it through the mixture. The gray substance is attracted to the magnet and she is able to separate the two solids. What is the gray substance in the container?
sodium chloride
copper
iron
aluminum
When Jackson throws a baseball in a straight path, what two forces cause the ball to eventually stop moving?
gravity and friction
negative acceleration and gravity
wind resistance and mass
mass and ground force
A car rolls down a ramp. What is the force acting on the car that causes the movement down the ramp?
acceleration
gravity
friction
centripetal
Bobby is riding his bike down the road at a speed of 10 miles per hour. Ahead of him, he sees another rider, moving in the same direction. Bobby is catching up with the rider ahead of him.
What is the estimated speed of the other rider?
About 5 mph.
The same speed as Bobby's.
Slower than 10 mph.
Much faster than 10 mph.
Car A and Car B are traveling to the same destination. If Car A is traveling slower than Car B, which statement is true?
Car A will arrive at the destination sooner.
Car B has more energy than car A.
Car A has more energy than car B.
Both cars will arrive at the destination at the same time.
John's grandfather clock has a pendulum that keeps the seconds. The observed pattern of motion for three complete swings of the pendulum is shown. Assuming that the pendulum starts at the right and moves toward the center first, predict the direction the pendulum will move next.
Outer
Center
Left
Right
A ball rolls up a ramp from the floor or height zero. The ball rolls up, stops and then rolls back down. When does the ball reach the floor again?
After 3 seconds
After 5 seconds
After 6 seconds
After 7 seconds
A ball rolls up a ramp from the floor or height zero. The ball rolls up, stops and then rolls back down. When does the ball reach the floor again?
Push the boxes with the same force, at exactly the same speed, up the ramp.
Push the boxes with the same force, smoothly up the ramp..
Push the largest box with the most force; push the others with about the same force.
The larger and heavier the box, the The larger and heavier the box, the more force you must use when more force you must use when pushing. pushing.
The box in the picture begins motionless, and then both forces are applied at the same time. Describe the resulting motion of the box.
The box will move to the right.
The box will move to the left.
The box will not move.
The box will move to the left and then right.
Four students tried out for a softball team. Each student threw the ball from the pitcher’s mound to home plate. The coach recorded how many seconds it took each throw to reach home plate.
Which student threw the ball with the greatest force?
Jake
Conner
Pete
Leroy
Consider the four free body diagrams. Free-body diagrams are diagrams used to show the relative magnitude and direction of all forces acting upon an object in a given situation. Do any of the free body diagrams indicate motion? If yes, which one(s). Explain.
No, in each case the forces are balanced.
Yes, in B the book is slowing down because of the friction force opposing motion.
You cannot tell if there is any motion. You can only determine how much force is acting on the objects.
Yes. in B and D. In both cases there is a net force. In B there is a net force to the left, in D there is a net force upward.
The second drawing shows a situation when a larger force is applied to the box than the force of friction. The result is that the box
moves to the left
moves right then left
does not move
moves to the right
How would you describe the relationship between the mass of a car and its kinetic energy?
As the mass of the car decreases, its kinetic energy increases.
As the mass of the car increases, its kinetic energy increases.
As the mass of the car decreases, its kinetic energy decreases.
As the mass of the car increases, its kinetic energy decreases.
Which point on the roller coasters path represents the point where kinetic energy is at a maximum?
A
B
C
A and C
Francis and Pedro are riding bicycles side by side. Pedro passes Francis. What caused Pedro's bicycle to go faster?
Pedro pushed harder on the pedals.
Pedro and Francis were going downhill.
The wind started blowing.
Pedro's bicycle weighed less than Francis's bicycle.
A train rolls to a stop along a horizontal track without the conductor applying the brakes. What answer choice BEST explains why this occurred?
The opposing force of friction stopped The opposing force of friction stopped the train. the train.
The force of gravity slowed the train until it stopped.
The natural state of the train is not to be in motion.
The train ran out of momentum.
Jenny was testing different surfaces to see which one had the least friction. She predicted that the basketball, seen above, would travel FASTEST down the ramp when the surface covering had the LEAST friction. Jenny used sheets of hard plastic, pebbles, and tree bark to cover the ramp. She let the basketball go, not pushing it, but letting gravity pull the basketball to the bottom of the ramp.
What were the controlled variables in the experiment?
ramp height, the basketball, and using ramp height, and using gravity gravity
pushing or not pushing the basketball down the ramp
the different types of ramp coverings
how fast the basketball moved down the ramp
Alexis and Candace were testing different surfaces to see which one had the least friction. They predicted that the marble, seen above, would travel FASTEST down the ramp when the surface covering had the LEAST friction. Alexis and Candace used rocks, plywood, and velcro to cover the ramp. They let the marble go, not pushing it, but letting gravity pull the marble to the bottom of the ramp.
What were the controlled variables in the experiment?
how fast the marble moved down the ramp
ramp height, the marble, and using gravity
the different types of ramp coverings
pushing or not pushing the marble down the ramp
A student wants to investigate how surface area affects the time it takes sugar to dissolve. Which setup allows for a fair test of this variable?
Sand and salt are placed in the bottom of a beaker filled with water. The beaker is heated, and the
water is stirred. What will happen to the salt and sand?
The sand will evaporate, and the salt will dissolve.
The sand and salt will dissolve in the water.
The sand and salt will settle to the bottom.
The salt will dissolve, and the sand will settle.
Which would most likely take the longest to dissolve?
Powdered sugar in hot water
Sugar cube in cold water
Powdered sugar in cold water
Sugar cube in hot water
A student fills 3 containers (X, Y, Z) with one liter of water each and adds different amounts of salt, to each container, as shown in the container.
How should the containers be sequenced to show decreasing salt concentration.
Container Y, Container Z, Container X
Container Y, Container X, Container Z
Container Z, Container X, Container Y
Container Z, Container Y, Container X
In which of the following mixtures is there evidence that a new substance was formed?
Blue crystals are mixed into a clear liquid and the volume of the solution is increased.
A salt water solution is boiled and salt crystals can be seen on the bottom of the container.
A clear liquid is mixed with a yellow powder and the powder dissolves completely.
A clear liquid is mixed with a yellow liquid and heat energy is released.
Solutions are mixtures that are very common in our daily lives. A solution is composed of a solute and solvent.
A student conducted an investigation using 50 milliliters of distilled water and 5 grams of table salt. The water for each test was brought to a certain temperature before the salt was added. The data from the investigation is shown in the graph.
Which conclusion best describes the data in the graph?
The amount of solute in a solution determines the time needed for the solute to dissolve in the solvent.
Increasing the amount of solvent increases the temperature of the solution.
Increasing the temperature of the solute increases the amount of the solution.
A decrease in the temperature of a solvent increases the time needed for a solute to dissolve in a solvent.
During a class activity, a student is given a mixture containing water, iron filings, sand, and salt. The teacher ask the student to separate salt from the given mixture. The student designed four experimental procedures that could be used to separate salt from the mixture.
What is the best procedure to separate salt from the given mixture?
Procedure P
Procedure Q
Procedure R
Procedure S
The diagram shows what happens when wood is burned.
Which statement best explains the change that occurs when wood is burned?
This is a chemical change because the products can be changed back into wood.
This is a physical change because the products can be changed back into wood.
This is a chemical change because the products are different from the starting materials.
This is a physical change because the products are different from the starting materials.
The picture shows a solid floating in a liquid.
Which of the following statements describes one way that solids are different from liquids?
Solids have weight and liquids do not.
Solids have a definite shape and liquids do not.
Solids have a definite volume and liquids don't.
Solids take up space and liquids do not.
Students observe a demonstration by their teacher. The teacher places a thermometer and ice water in a beaker and slowly heats the beaker on a hot plate. The students know that water freezes at 0°C and boils at 100°C. At three different times, the teacher reads the temperature on the thermometer while the students describe the spacing and motion of the particles in the beaker.
Which data table correctly represents the spacing and motion of the particles at each temperature?
Donna wants to measure the volume of her pet rock, Rocky. She knows she can't measure it with a ruler. What should Donna use to measure the volume of her pet rock, Rocky?
a scale
a balance
a yard stick
a graduated cylinder
On Monday, Joey filled a glass with tap water. When he looked at the glass a few days later, some of the water had evaporated. Which of the following best describes what
happened to the particles of water that evaporated?
They are absorbed by the glass.
They became larger in size.
They spread out into the air.
They passed through the glass into the air.
A student conducts a scientific investigation to determine which items have densities greater than water. The student knows that if an item has a density greater than water, it sinks. The student drops 4 different items into a beaker of water and records the outcomes in a table.
What conclusion can the student make based on the data collected?
The rock and the penny have greater densities than the water.
All of the items have densities greater than water.
The water is less dense than the birthday candle and the corn kernel.
Water has a greater density than all the items.
The ________ is the substance that dissolves in a solution.
solubility
solvent
solute
solution
What is the best definition of matter?
Anything that does not have mass or take up space.
Anything that has mass but doesn't take up space.
Anything that has mass and takes up space.
Anything that does not have mass and takes up space.
What is the smallest part of all matter?
a molecule
an atom
an element
a proton
Using the chart below of the Mohs Hardness Scale, answer the following question.
A certain mineral sample cannot scratch apatite, but apatite can scratch the sample.
Which of the following is most likely the mineral’s hardness?
4
6
8
10
Conductors are very useful to transmit electric current.
Which of the following would be a conductor? Choose 2.
Paper Clip
Plastic Cup
Glass Bowl
Copper Wire
Wooden Pencil
Misty moves at a constant speed during an exercise run. The following graph shows her motion for the first 30 seconds of the run. If Misty continues to run at the same speed for 20 more seconds, what is the total distance in meters (m), she will have traveled?
40 m
80 m
100 m
120 m
A student places a ball on a level surface and performs a series of tests by applying varying amounts of force on the ball. The student measures the distances the ball travels in 30 seconds and records the data in the table shown.
What can be inferred from the data?
A minimum force of 1.2 N is required to move the ball.
The larger the mass of the ball, the slower it moves with the application of the same force.
The greater the force applied on the ball, the greater its change in speed.
The ball travels a minimum distance of 1.0 m with the application of any force.
A student is pushing a toy car down a ramp. If the student places the toy car on the ramp again and increases the force used to push the toy car, what will happen?
The kinetic energy will decrease, and the toy car will go faster.
The kinetic energy will increase, and the toy car will go faster.
The potential energy will increase, and the toy car will go slower.
The potential energy will decrease, and the toy car will go slower.
A student pushes a basketball across the floor with different amounts of force. Which statement best describes the motion of the basketball?
The basketball moves fastest when the largest balanced force is applied.
The basketball moves fastest when the smallest balanced force is applied.
The basketball moves fastest when the largest unbalanced force is applied.
The basketball moves fastest when the smallest unbalanced force is applied.
A ball is thrown upward from the ground, as shown in the diagram.
Which force causes the ball to fall to the ground?
friction
electricity
magnetism
gravity
A paper airplane is flying toward a fan at a constant speed.
If the fan is turned on, what is the best explanation of how the motion of the paper airplane will change?
The paper airplane will fly faster toward the fan because of a balanced force.
The paper airplane will fly faster toward the fan because of an unbalanced force.
The paper airplane will fly slower toward the fan because of a balanced force.
The paper airplane will fly slower toward the fan because of an unbalanced force.
Four objects on the surface of Earth. Which object experiences the largest gravitational force?
cell phone
pen
bowling ball
car
Which action should be taken to increase the amount of friction to a wooden floor?
Wet the floor
Wax the floor
Cover floor with a rug
Oil the floor
Which of the following will decrease friction?
add water
add sand
add wax paper
add gravel
add oil
Students measured the time it took for a block to slide down a ramp.
What were the students testing in this experiment?
The effect of friction on the block.
The effect of friction on the ramp.
The effect of gravity on the block.
The effect of gravity on the ramp.
A student made a track for a toy sled using four different materials. At which section of the track is friction most likely to cause the greatest resistance to the motion of the toy sled?
1
2
3
4
The student has completed the investigation with using the fan's low and medium settings. The data collected in shown in the table.
Based on the data collected, which set of data best predicts the distances, in centimeters, the ping pong ball will travel with the fan set to high?
10, 11, 13
25, 27, 26
37, 35, 38
44, 47, 42
A clock uses a swinging pendulum to keep accurate time. The diagram shows the motion of the pendulum for five stages.
Which image correctly completes the diagram in stage 4?
A woman is pushing a very heavy box.
The woman needs to make the box move faster. What can she do to make the box increase its speed in a forward direction?
The woman can increase the mass of the box.
The woman can apply a force on the box from the opposite direction.
The woman can decrease the force on the box.
The woman can apply a greater force on the box in the direction the box is moving.
:
A group of students was challenged to construct a boat that could transport 10 mL of corn syrup across a small, plastic swimming pool.
Which QUESTION will best help the students design their boat?
What force is needed to push the boat across the length of the pool?
What boat shape is needed to lower the density of the boat and the corn syrup?
What is the mass of the boat and the corn syrup?
What is the distance from one point of the pool to the point on the exact opposite side?
Will is doing an experiment. He wants to find out how objects with different masses are affected when he pushes them with the same amount of force. To do his experiment, he has a cart and several weights he can put in the cart.
By putting more weights in the cart, Will can make the cart more massive. By putting fewer weights, he can make the cart less massive. Will has a stopwatch, so he can measure how fast the cart goes. If he plans to study the relationship between the mass of the cart and its speed when pushed with the same amount of force, what else does Will need?
a way to change the force pushing on the cart
a way to change the kind of surface the cart travels on
a way to push the cart with the same force every time
a way to change the mass of the cart
A worker pushes on a box, but the box is too heavy so it does not move. This is shown in the picture below.
How could the worker make it easier to move the box?
place the box on its side so more of it is touching the ground
place the box on a cart with wheels to decrease friction
place extra weight on top of the box
increase friction between the box and the floor
