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Worksheets2024 First Semester Exam REVIEW
Total questions: 18
Worksheet time: 9mins
The dog has four legs.
Opinion
Observation
An educated guess is a(n)
Problem
Conclusion
Hypothesis
Procedure
An appropriate tool to measure distance is ____
Metric Ruler
Scale
Stopwatch
Yardstick
What practices should be followed when doing laboratory clean up?
Clean all pieces of equipment and return all materials to their proper place.
Clean only the pieces that will be reused by the next class.
Nothing, the next class will clean up.
Nothing, the other laboratory group members will take care of it.
What is the measurement of point b?
1.5 mm
1.5 cm
3.2 mm
3.2 cm
Which atoms are present?
1 silver, 1 nitrogen, 1 oxygen
1 silver, 1 nitrogen, 3 oxygen
1 silver, 3 nitrogen, 3 oxygen
3 silver, 3 nitrogen, 3 oxygen
What is shown in the picture?
1 compound, 3 elements, and 5 atoms
2 compound, 3 elements, and 6 atoms
1 compound, 2 elements, and 5 atoms
2 compound, 3 elements, and 5 atoms
Which is a chemical change?
Change 1
Change 2
Change 3
Change 4
How would this change be classified?
As a chemical change because a new substance is formed.
As a chemical change because a new substance is not formed.
As a physical change because a new substance is formed.
As a physical change because a new substance is not formed.
If more solvent is added to an aqueous solution, what happens to the concentration?
The volume decreases, the amount of solute remains the same, and the concentration decreases.
The volume increases, the amount of solute remains the same, and the concentration decreases.
The volume increases, the amount of solute increases, and the concentration increases.
The volume decreases, the amount of solute increases, and the concentration increases.
Which of the following factors does NOT affect the rate that a solute dissolves in a solution?
Light
Particle Size
Stirring
Temperature
Which has the greatest average speed?
a boat sailing 80 km in 2 hours
a car driving 90 km in 3 hours
a train traveling 120 km in 3 hours
a truck moving 50 km in 1 hour
Speed is defined as ____ / time
acceleration
displacement
distance
force
Which pair have the same velocity?
a boy walking east at 2 km/h and a man walking east at 4 km/h
a car standing still and a truck driving in a circle at 4km/h
a dog walking west at 3 km/h and a cat walking west at 3 km/h
a girl walking west at 3 km/h and a boy walking south at 3 km/h
A car traveling at 50 km/h passes a car traveling west at 50 km/h. Which statement correctly compares the movement of the 2 cars?
The car's speeds and velocities are identical.
The cars have the same speed but different velocities.
The cars have the same velocities but different speeds.
The cars have different speeds and different velocities.
Which statement best describes the motion of the elevator?
The elevator traveled down between 1 and 2 minutes.
The elevator stayed still between 1 and 2 minutes.
The elevator traveled up between 2 and 3 minutes.
The elevator stayed still between 2 and 3 minutes.
During which time interval does the car move at the greatest average speed?
0 - 10 min
10 - 20 min
20 - 30 min
30 - 40 min
Student A pushes a box to the right with a force of 50 N causing it to begin moving. Student B wants to stop the motion of the box. Which statement describes the strength and direction of the force Student B would need to apply to the box?
Student B pushes with a force greater than 50 N to the left
Student B pushes with a force less than 50 N to the right
Student B pushes with a force equal to 50 N to the right
Student B pushes with a force less than 50 N to the left
