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Science
9th -
12thgrade
Physical Science 1st 9wks Common Assessment Study Guide
23 questions
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- 1. Multiple Choice
A train approaching a crossing changes speed from 25 m/s to 10 m/s in 240 s. How can the train’s acceleration be described?
The train’s acceleration is positive.
The train is not accelerating.
The train will come to rest in 6 minutes.
The train’s acceleration is negative.
- 2. Multiple Choice
What is instantaneous acceleration?
how fast a speed is changing at a specific instant
how fast a velocity is changing at a specific instant
how fast a direction is changing at a specific instant
all of the above
- 3. Multiple Choice
Which of the following statements is true?
An object that is accelerating is always changing direction.
An object has an instantaneous acceleration, even if the acceleration vector is zero.
An object at rest has an instantaneous acceleration of zero.
Instantaneous acceleration is always changing.
- 4. Multiple Choice
Which of the following relationships is correct?
1 N = 1 kg
1 N = 1 kg·m
1 N = 1 kg·m/s
1 N = 1 kg·m/s2
- 5. Multiple Choice
When an unbalanced force acts on an object,
the object’s motion does not change.
the object accelerates.
the weight of the object decreases.
the inertia of the object increases.
- 6. Multiple Choice
As you push a cereal box across a tabletop, the sliding friction acting on the cereal box
acts in the direction of motion.
equals the weight of the box.
is usually greater than static friction.
acts in the direction opposite of motion.
- 7. Multiple Choice
The forces acting on a falling leaf are
air resistance and fluid friction.
gravity and air resistance.
gravity and static friction.
weight and rolling friction.
- 8. Multiple Choice
If a force of 12 N is applied to an object with a mass of 2 kg, the object will accelerate at
0.17 m/s2.
24 m/s2.
6 m/s2.
12 m/s2.
- 9. Multiple Choice
The gravitational force between two objects increases as mass
decreases or distance decreases.
decreases or distance increases.
increases or distance decreases.
increases or distance increases.
- 10. Multiple Choice
In which step of the scientific method is information obtained through the senses?
drawing conclusions
making observations
analyzing data
revising a hypothesis
- 11. Multiple Choice
What is a statement that summarizes a pattern found in nature?
a scientific law
a fact
a scientific theory
a hypothesis
- 12. Multiple Choice
What is the most important safety rule?
Never work with chemicals.
Always use unbreakable glassware.
Always follow your teacher’s instructions and textbook directions exactly.
Never do experiments that involve flames or hot objects.
- 13. Multiple Choice
Which of the following is an example of a safe laboratory procedure?
tying back long hair and loose clothing
eating or drinking from laboratory glassware
touching hot objects with your bare hands
testing an odor by directly inhaling the vapor
- 14. Multiple Choice
The type of graph used to show how a part of something relates to the whole is which of the following?
circle graph
bar graph
line graph
direct proportion
- 15. Multiple Choice
A passenger in the rear seat of a car moving at a steady speed is at rest relative to
the side of the road.
a pedestrian on the corner ahead.
the front seat of the car.
the wheels of the car.
- 16. Multiple Choice
Which example describes constant acceleration due ONLY to a change in direction?
increasing speed while traveling around a curve
an object at rest
traveling around a circular track
an object in free fall
- 17. Multiple Choice
The SI unit of force is the
joule.
kilogram.
meter.
newton.
- 18. Fill in the Blank
A measurement must include both a number and a(an) ____________________.
- 19. Fill in the Blank
A(An) ____________________ is a way of organizing data that is used to show changes that occur in related variables.
- 20. Fill in the Blank
Because lab activities can involve hazardous materials, it is always important to read and understand any ____________________ that must be followed.
- 21. Fill in the Blank
Speed is measured in units of _________________________.
- 22. Fill in the Blank
Freely falling objects accelerate at 9.8 m/s2 because the force of ____________________ acts on them.
- 23. Fill in the Blank
The sum of all the forces acting on an object is called the ____________________.
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