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- 1. Multiple Choice
Which is a correct expression of scientific notation?
7.2 x 10 m
0.5 x10^-2 m
1.5 x 10^-5 m
100^6m
- 2. Multiple Choice
If a book weighs 5000 grams, how many kilograms does it weigh?
0.5 kg
5kg
50 kg
500 kg
- 3. Multiple Choice
Which of the following best describes measured values with respect to the exact value?
exact value: 13.3 mol/kg measured values: 11.2 mol/kg, 8.90 mol/kg, 5 mol/kg
precise
accurate
both precise and accurate
Neither precise nor accurate
- 4. Multiple Choice
Which of the following data is NOT a vector quantity?
5 km, west
15 m, north
35 m
20 km, south
- 5. Multiple Choice
Consider two vectors both directed to the east and with a magnitude of 10 m. What will be the resultant vector when they are added?
10 m, east
0
20 m, east
5 m, east
- 6. Multiple Choice
A vector is directed towards the north with a very large magnitude. How will you describe the x-component?
very large
average
equal to its y-component
zero
- 7. Multiple Choice
From a toll gate, a car accelerates to a velocity of 60 km/hr in 10 minutes. What is the acceleration of the vehicle?
360 km/hr^2
240 km/hr^2
120 km/hr^2
60 km/hr^2
- 8. Multiple Choice
A toy has been dropped off by a kid on the 19th floor of his family’s condominium unit. The unit is 40 m high. Disregarding air resistance, how long will the toy reach the ground?
5.00 s
4.00 s
2.85 s
2.35s
- 9. Multiple Choice
Leonard wanted to measure the depth of the dried-up well beside their house. He dropped a coin into it, and it took 2.00 seconds for the coin to reach the ground. What is the total depth of the well?
19. 6 m
29.6 m
9.62 m
91.6 m
- 10. Multiple Choice
A ball is thrown in the air at an angle of 40.00. If the maximum height reaches 10.00 m, what must be its initial speed?
17. 46 m/s
21.78 m/s
304.9 m/s
474.4 m/s
- 11. Multiple Choice
Which correctly describes the relationship between the x- and y- velocities of projectiles?
They depend on each other.
They are independent of each other.
The x-component is equal to the y-component.
The y-component is always greater than the x-component.
- 12. Multiple Choice
Which of the following statements describes the law of inertia?
Objects at rest only.
Objects that are in motion.
Both objects at rest and objects that are in motion.
Neither objects at rest nor objects that are in motion
- 13. Multiple Choice
Which law best explains why more force must be applied to the bowling ball to make it accelerate at the same rate as the tennis ball?
Law of Inertia
Law of Acceleration
Law of Interaction
Law of Conservation
- 14. Multiple Choice
A 20.00 kg bike accelerates at 10.00 m/s2. What is the force?
25.00 N
200.0 N
20.00 N
10.00 N
- 15. Multiple Choice
What are the net force and the direction of movement?
50 N, left
500 N, left
50 N, right
450 N, right
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