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WorksheetsBenchmark Reteach
Total questions: 32
Worksheet time: 32mins
The graph shown represents the motion of a beetle crawling across a classroom floor. Which time interval is the beetle turning around and going back to start?
Between 0 and 2 seconds
Between 2 and 4 seconds
Between 4 and 6 seconds
Between 6 and 8 seconds
How many elements are in the compound?
1
3
6
24
A student places a thin strip of gray material in a test tube containing a clear liquid. The next day, the material has disappeared and the liquid is yellow. What evidence of a chemical change is there?
production of a gas
change in temperature
production of a precipitate
color change
According to the chart, when does the propeller have the greatest amount of kinetic energy?
fter the rubber band was twisted 5 times.
After the rubber band was twisted 10 times.
After the rubber band was twisted 15 times.
After the rubber band was twisted 20 times.
At which point does the swinging person have the most kinetic energy?
Point X
Point Y
Point Z
None
At which point on the rollercoaster will the car have the greatest amount of kinetic energy?
Point W
Point X
Point Y
Point Z
At which point on the rollercoaster will the car have the greatest amount of potential energy?
Point W
Point X
Point Y
Point Z
The chemical equation below shows the process of photosynthesis. Which is the element in the equation?
6CO2
6H2O
C6H12O6
6O2
A certain element is a solid that has a shiny gray appearance and is a good conductor at room temperature. However, this element is very brittle in texture and cannot be hammered into a flat shape without falling apart. This element is most likely classified as a ____________.
wood
metal
non-metal
metalloid
The graph shows the movement of a car over time. What is the car’s average speed at 2 hours?
10 km per hour
15 km per hour
30 km per hour
60 km per hour
An unknown substance is a semi-conductor and is very brittle. This unknown substance could be which of the following elements from the table?
mercury
copper
hydrogen
boron
An inclined plane reduces the amount of force needed to move an object by —
transferring more of the force to the object.
reversing the direction the object is moved.
decreasing the pull of gravity on the object.
increasing the distance the object moves.
Jodi was warming up for a marathon and went on a 30 MINUTE run. She covered 2 miles. What was her average speed in MPH?
15 MPH
4 MPH
60 MPH
0.067
When sulfuric acid is added to sugar a chemical change takes place. According to the illustration above what evidence of a chemical change is there?
it turned yellow
a gas was produced
it got hot
it got cold
The conductivity tester above is used on the three elements labeled 1, 2, and 3. When the electrodes are placed on an element, the light bulb at the top will light up brightly, dimly, or not at all depending on the conductivity of the element. Which element pictured will make the light bulb light up brightly (good conductor)?
Element 1
Element 2
Element 3
none
Which graph would best describe the motion of an object when it was speeding up?
A
B
C
D
Which graph would best describe the motion of an object when it was moving with a constant speed?
A
B
C
D
Which graph would best describe the motion of an object when it was not moving?
A
B
C
D
Which of the following will require the least force to move the load up the inclined plane?
Which of the following compounds contains the greatest number of different elements?
CO
C₂₂H₄₆
C₆H₁₂O₆
CH₄
Both teams are pulling with a force of 2300 newtons. What will happen if the team on the left makes an extra effort and pulls the rope with a force of 2400 newtons?
The team on the right will be able to pull the other team to the left using an unbalanced force.
The team on the left will be able to pull the other team to the left using an unbalanced force.
The team on the right will be able to pull the other team to the right using a balanced force.
Nothing will happen because the forces will be balanced.
A ball is placed high up on a shelf, where it sits motionless. Which of the following statements about the ball is NOT true?
The ball has kinetic energy.
The ball has energy due to its position on the shelf.
The ball has potential energy.
None of the above
Which substance most likely caused a NEW SUBSTANCE to be formed when mixed with water?
Substance 1
Substance 2
Substance 3
Substance 4
Students are investigating changes from potential to kinetic energy by rolling a marble down a ramp made by propping up a plastic ruler on a book and letting it roll down. Which of the following will increase the potential energy the marble starts with?
Switching the plastic ruler with a wooden one
Replace the marble with a rock
Pushing the marble down the ramp
Adding more books beneath the ruler
Below is the compound glucose. How many carbon ATOMS are in glucose?
C6H12O6
3
6
12
24
The chemical formula for sodium sulfate is Na2SO4. How many sulfur atoms are in the formula for sodium sulfate?
1
2
6
7
A game of tug-of-war, in which two teams pull on opposite ends of a rope, is illustrated here. The center of the rope will move when which of the following is true?
The ground provides no friction for either team
One team has more people than the other
The rope has essentially no mass of its own
One team pulls with more force than the other
The student can conclude that a chemical change occurred because —
there was no change in mass during the experiment.
one substance was more dense than the other.
a solid formed when the two liquids were mixed.
there was no temperature change during the experiment.
Dwayne left his bicycle outside in the rain for several days. He notices some spots on the bicycle's iron frame have changed color from silvery-gray to reddish-orange. These spots are also rough to the touch. The rest of the frame is smooth. Which statement best describes what has happened?
The water cooled the iron, which caused it to solidify into a substance called rust.
The water eroded the outer layer of the iron to expose a solution called rust.
The water coated the iron and cooled to form a reddish-orange solution called rust.
The water chemically reacted with the iron to form a new substance called rust.
The list includes 6 situations
● A skier going down a mountain
● An airplane in flight at cruising altitude (constant speed)
● A book sitting on a shelf
● A girl falling out of her chair
● An apple picked off a tree
● A truck driving down 290 at a constant speed
Which objects in the list experienced an unbalanced force.
a skier, an airplane, and a book
a skier, a girl, and an apple
an airplane, a book, and a truck
an airplane, a girl, and a truck
If the car was in motion on the race track, how would the car be affected if the Force From Friction and the Force From Motor were EQUAL (balanced)?
The car would continue with the same motion.
The car would speed up.
The car would come to a stop.
The car would slow down.
Annie’s mom drove her to her friends house 5 miles way. It took her 10 minutes. What was their average speed in miles per hour?
30 MPH
2 MPH
50 MPH
0.5 MPH
