Forces
Properties of Matter
Mixtures and Solutions
Changes
Random
100
A student has two boxes.
Box 1 has a mass of 10 kg and box 2 has a mass of 20 kg. The student wants to push both boxes the same distance across the floor.
Choose a word in each set of options to compare the forces acting on the boxes.
( Less / More ) ( noncontact / contact ) force will be needed to move box 1 than box 2.
Less; contact
100
The total amount of mass
What is 110 g?
100
Two or more substances keep their individual properties when combined; no chemical reaction occurs; each part is visible.
What is a mixture?
100
Is this an example of a physical or chemical change?
Physical
100
If we REMOVED the ice from the first glass, what would be the total mass?
60 g
200
Workers at a warehouse use a steep ramp to help them move large boxes out of a truck. The ramp is made of painted wood. Workers can slip and fall if the ramp gets wet. A worker at the warehouse would like to decrease the chances of slipping while using the ramp. The worker researches four different materials that could be added to the surface of the ramp. The table shows the possible material types and a description of each material.
Which material should the worker most likely add to the surface of the ramp and why?
The carper because it increases friction, can get wet, and be used outside.
200
In what two ways are the particles of the ice cubes changing?
The particles are moving faster and becoming looser.
200
One substance dissolves into another when combined; one substance is distributed evenly into another substance; each particle is not visible.
What is a solution?
200
A match burns and a nail rusts. What kind of change occurs during these two examples and how do you know?
A chemical change because the color changes on both and cannot be changed back.
200
The data table shows the densities of the three liquids.
Explain how the students will be able to identify apple juice. It will ( sink to the bottom / float on top / be in the middle of the other liquids ).
Be in the middle of the other liquids
300
A student has two boxes. Box 1 has a mass of 10 kg and box 2 has a mass of 20 kg. The student wants to push both boxes the same distance across the floor.
Which two forces will be acting on the boxes once th student begins to push them?
A. friction and applied (contact)
B. spring and electrical
C. magnetic and friction
D. gravitational and magnetic
frictional and applied
300
Is the temperature rising or falling for this process to occur?
Rising
300
Air on Earth is an example of this
Solution
300
Which action is an example of a chemical change?
A. melting ice
B. tearing paper
C. mowing grass
D. baking brownies
D. baking brownies
300
Put the substances in order from the least dense to the most dense.
Vegetable oil
Corn syrup
Apple Juice
400
A student conducts the first trial of an investigation using a ramp and 5 books. The student places a ball at the top of the ramp and records how long it takes the ball to roll down the ramp.
For the second trial, the student removes two books. How will removing two books most likely affect the motion of the ball for the second trial?
A. The ball will travel at a slower speed than the first trial.
B. The ball will travel at a faster speed than the first trial.
C. The ball will travel at various speeds throughout the entire first trial.
D. The ball will travel at a constant speed during both trials.
A. The ball will travel at a slower speed than the first trial.
400
In which phase are the particles in the glasses more likely to ALL slide or roll past one another?
The 2nd glass
400
A teacher started class by holding up a jar. The jar contained water, sawdust, sand, and salt. The goal for the class was to work in small teams to separate the parts of the mixture. What order should the methods below be used to separate the mixture.
Evaporating the water
Removing with a sifter
Using a paper filter
1- Using a sifter
2- Using a paper filter
3- Evaporation
400
A plant uses ( chemical / physical / light ) energy from the Sun and converts it into ( chemical / physical / thermal ) energy for the plant. This is a chemical/physical/solution) change.
LIGHT
CHEMICAL
CHEMICAL
400
A student lists the following information about atoms.
1. Atoms are too small to be observed by the human eye.
2. Atoms make up all types of matter.
3. Each type of atom has a certain mass.
Which statement best describes another feature of atoms?
A. Atoms bond together to form molecules.
B. Atoms of different types are the same size.
C. Atoms are spaced the same in different types of matter.
D. Atoms in gases are more easily observed than atoms in solids.
A. Atoms bond together to form molecules
500
Choose a word in each set of options to explain the energy in a rubber band.
Stretching a rubber band increases the ( kinetic / potential ) energy stored by that rubber band.
Once released, this energy is converted to ( kinetic / potential ) energy.
Potential/kinetic
500
Is there was an increase in energy, this would be the next process to occur
What is evaporation?
500
Which process would be the best way to increase the concentration in a solution of sugar and water?
A. Decrease the amount of sugar, and increase the amount of water.
B. Increase the amount of sugar, and keep the amount of water constant.
C. Decrease the amount of sugar, and decrease the amount of water.
D. Increase the amount of water, and keep the amount of sugar constant.
B. Increase the amount of sugar, and keep the amount of water constant.
500
What kind of changed happened and what's the process called?
Solid
Liquid
Absorbed
Physical and melting
500
Students are asked to design a boat that can transport 40 grams of coins from one end of a container of water to the opposite end. Which statement best describes a possible outcome when students follow the engineering design process?
A. If the boat is successful, the students will improve the design.
B. If the boat is unsuccessful, the students will redefine the problem.
C. If the boat is successful, the students will communicate the results.
D. If the boat is unsuccessful, the students will retest with more coins.
C. If the boat is successful, the students will communicate the results.