WorksheetsICP Final Exam December 2024
Total questions: 46
Worksheet time: 23mins
Name
Class
Date
1.
Name
4 lines
2.
1. In which step of the scientific method is information obtained through the senses?
a)
Drawing conclusions
b)
making observations
c)
analyzing data
3.
2. A proposed answer to a question that is testable is a
a)
Hypothesis
b)
Data
c)
conclusion
4.
3. What happens when the data in an investigation do not support the original hypothesis?
a)
The scientist gives up and starts an investigation on a new topic.
b)
The data must be incorrect and are thrown out.
c)
The hypothesis will be revised.
5.
4. How do scientist communicate the results of investigations?
a)
By publishing articles in scientific journals.
b)
By giving talks at scientific conferences.
c)
by exchanging e-mails.
d)
All of the above.
6.
5. In a scientific investigation, the variable that changes because of the independent variable is the
a)
dependent (responding) variable
b)
closed variable
c)
independent (manipulated) variable
7.
6. In a scientific investigation, the variable that causes the other to change is the
a)
controlled variable
b)
independent variable
c)
dependent variable
8.
7. What is a statement that summarizes a pattern found in nature?
a)
A scientific law
b)
A scientific theory
c)
A hypothesis
9.
8. Which of the following statements is true about scientific theories?
a)
Scientific theories become scientific laws.
b)
Scientific theories are never proven.
c)
Scientific theories become hypothesis.
10.
9. The SI base unit of mass is the
a)
kilogram
b)
liter
c)
meter
11.
10. The SI unit for distance (length) is the
a)
kilogram
b)
liter
c)
meter
12.
11. The SI unit for liquid volume is the
a)
kilogram
b)
liter
c)
meter
13.
12. A passenger in the rear seat of a car moving at a steady speed is at rest relative to
a)
The side of the road
b)
A pedestrian on the corner ahead
c)
The front seat of the car
14.
13. The length of a path between two points is
a)
The path
b)
The straight line
c)
The distance
15.
14. The direction from the starting point and the length of a straight line from the starting point to the ending point is called
a)
Displacement
b)
Distance
c)
Magnitude
16.
15. A person drives north 3 blocks, then turns east and drives 3 blocks. The driver then turns south and drives 3 blocks. How could the driver have made the distance shorter while maintaining the same displacement?
a)
By driving east 3 blocks from the starting point
b)
By driving north 1 block and east 4 blocks
c)
By driving west 3 blocks from the starting point
17.
16. A person walks 1 mile every day for exercise, leaving her front porch at 9:00 AM and returning to her front porch a 9:25 AM. What is the total displacement of her daily walk?
a)
1 mile
b)
0
c)
25 minutes
18.
17. Speed is the ratio of the distance an object moves to
a)
The amount of time needed to travel the distance
b)
The direction the object moves
c)
The displacement of the object
19.
18. Instantaneous speed is measured
a)
When the object reaches its destination point
b)
At the starting point
c)
At a particular instant of a trip
20.
19. A car traveled 88 km in 1 hour, 90 km in the next 2 hours, and then 76 km in 1 hour before reaching its destination. What was the car’s average speed?
a)
63.5 km/hr
b)
209 km/hr
c)
74.5 km/hr
21.
20. A horizontal line on a distance-time graph means the object is
a)
Moving at a constant speed
b)
At rest
c)
Moving faster
22.
21. The slope of a line on a distance-time graph is
a)
Distance
b)
Speed
c)
Displacement
23.
22. What is the speed of a bobsled whose distance-time graph indicates that it traveled 200 m in 50 s?
a)
4 m/s
b)
0.50 m/s
c)
250 m/s
24.
23. Vector addition is used when motion involves
a)
More than one direction
b)
More than one velocity
c)
More than one speed
d)
All of the above
25.
24. The rate at which velocity changes is called
a)
Speed
b)
Acceleration
c)
Vector
26.
25. Acceleration is
a)
Changes in speed
b)
Changes in direction
c)
Changes in both
27.
26. Which example identifies a change in motion that produces acceleration?
a)
a speed skater moving at a constant speed on a straight track
b)
a vehicle moving down the street at a steady speed
c)
a speed skater moving at a constant speed around a circular track
28.
27. The movement of an object toward Earth solely because of gravity is called
a)
Fast falling
b)
Free falling
c)
Constant velocity
29.
28. An object that is accelerating may be
a)
Slowing down
b)
Changing direction
c)
Gaining speed
d)
All of the above
30.
29. Suppose you increase your walking speed from 1 m/s to 3 m/s in a period of 2 s. What is your acceleration?
a)
1 m/s^2
b)
2 m/s^2
c)
4 m/s^2
31.
30. The SI unit of force is the
a)
Joule
b)
Kilogram
c)
Newton
32.
31. When a pair of balanced forces acts on an object, the net force that results is
a)
Greater in size than one of the forces
b)
Equal in size to one of the forces
c)
Equal to zero
33.
32. When an unbalanced force acts on an object,
a)
The object’s motion does not change
b)
The object accelerates
c)
The inertia of the object increases
34.
33. Static, sliding, rolling, and fluid are terms describing
a)
Types of accelerated motion
b)
Gravitational forces
c)
Four types of friction force
35.
34. According to Newton’s second law of motion, the acceleration of an object equals the net force acting on the object divided by the object’s
a)
Mass
b)
Velocity
c)
Weight
36.
35. Projectile motion is caused by
a)
The downward force of gravity
b)
An initial forward velocity
c)
Both the downward force of gravity and an initial forward velocity
37.
36. An orange might roll off your cafeteria tray when you stop suddenly because of
a)
The balanced forces acting on the orange
b)
The centripetal force acting on the orange
c)
The orange’s inertia
38.
37. If a force of 10 N is applied to an object with a mass of 1 kg, the object will accelerate at
a)
0.1 m/s2
b)
9 m/s2
c)
10 m/s2
39.
38. Newton’s third law of motion describes
a)
Balanced forces
b)
Centripetal forces
c)
Action and reaction forces
40.
39. In which of the following are action and reaction forces involved?
a)
When a tennis racket strikes a tennis ball
b)
When stepping from a curb
c)
When rowing a boat
d)
All of the above
41.
40. What is the momentum of a 50-kilogram ice skater gliding across the ice at a speed of 2 m/s?
a)
25 kg/m/s
b)
100 kg*m/s
c)
50 kg
42.
41. What force is responsible for the repulsion between two positively-charged particles?
a)
Magnetic
b)
weak nuclear
c)
Strong nuclear
43.
42. Which universal force acts only on the protons and neutrons in a nucleus?
a)
Magnetic
b)
Electric
c)
Strong nuclear
44.
43. Which of the following universal forces is the most effective over long distances?
a)
Gravitational
b)
Magnetic
c)
Electric
45.
44. Acceleration of a falling object due to the force of gravity (without friction) is ____________.
a)
7.5 m/s^2
b)
8.9 m/s^2
c)
9.8 m/s^2
46.
45. A child drops a ball from a bridge. The ball strikes the water under the bridge 2.0 seconds later. What is the velocity of the ball when it strikes the water?
a)
64 FT/SEC.
b)
19.6 FT/SEC
c)
38 FT/SEC
100 %
