Test
Mastering Physics: Chapter 3
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Preguntas del test (22)
1A speedometer normally measures __________.
- Avelocity
- Bdistance traveled
- Caverage speed
- Dinstantaneous speed
2The difference between speed and velocity involves ________.
- Aacceleration
- Bpath length
- Cdirection
- Dthe magnitude of each
3Galileo discovered that when air resistance can be neglected, all objects fall with the same _______.
- Aacceleration
- Bdistance
- Cspeed
- Denergy of motion
4Each second, a ball rolling down an inclined plane picks up ___________.
- Aincreasing amounts of speed
- Bacceleration, not speed
- Cthe same amount of speed
- Ddecreasing amounts of speed
5When we're talking about how quickly "how fast" changes, we're talking about _______.
- Aincreases in falling distance
- Bacceleration
- Cthe difference between speed and velocity
- Dfree-fall physics
6In its first second of free fall, a dropped softball will fall a vertical distance of ________.
- A20m
- B15m
- C5m
- D10m
7A ball freely falling at 20 m/s will in the next second have a speed of _________.
- Amore than 30 m/s
- B20 m/s
- C10 m/s
- D30 m/s
8The vertical height attained by a basketball player who achieves a hang time of a full 1 s is...
- Aabout 1.2 m
- Babout 0.8 m
- Cmore than 2.5 m
- Dabout 2.5 m
- Eabout 1 m
9A pot falls from a ledge and hits the ground 45 m below. The speed with which it hits the ground is
- Aabout 60 m/s
- Babout 120 m/s
- Cabout 30 m/s
- Dmore than 120 m/s
10A ball is thrown upwards. Neglecting air resistance, what initial upward speed does the ball need to remain in the air for a total time of 10 seconds?
- Aabout 80 m/s
- Babout 60 m/s
- Cabout 50 m/s
- Dabout 100 m/s
- Eabout 110 m/s
11A car accelerates at 2 meters per second per second. Assuming the car starts from rest, how much time does it need to accelerate to a speed of 30 m/s?
- A2 seconds
- B15 seconds
- C60 seconds
- D30 seconds
- Enone of these
12If a projectile is fired straight up at a speed of 10 m/s, the total time to return to its starting position is about
- A1 second
- B10 seconds
- C2 seconds
- D20 seconds
- Enot enough info to estimate
13If a projectile is fired straight up at a speed of 10 m/s, the time it takes to reach the top of its path is about
- A2 seconds
- B1 second
- C10 seconds
- Dnot enough information to estimate
14In each second of fall, the distance a freely falling object will fall is
- Aabout 10 m
- Bthe same, but not 5 m or 10 m
- Cabout 5 m
- Dincreasing
- Enone of these
15It takes 6 seconds for a stone to fall to the bottom of a mine shaft. How deep is the shaft?
- Amore than 200 m
- Babout 60 m
- Cabout 120 m
- Dabout 180 m
16Starting from rest, the distance a freely falling object will fall in 0.5 second is about
- A0.5 m
- B1 m
- C1.25 m
- D5 m
- Enone of the above
17A ball is thrown upwards and caught when it comes back down. In the presence of air resistance, the speed with which it is caught is always
- Amore than the speed it had when thrown upwards
- Bthe same as the speed it had when thrown upwards
- Cless than the speed it had when thrown upwards
- Dimpossible to determine
18At one instant a heavy object in air is moving upward at 50 meters per second. One second later its speed is approximately
- A55 m/s
- B50 m/s
- C60 m/s
- D40 m/s
19If a car accelerates from rest at 2 meters per second per second, its speed 3 seconds later will be about
- A2 m/s
- B3 m/s
- C4 m/s
- D6 m/s
20A car accelerates at 2 meters/s/s. Assuming the car starts from rest, how far will it travel in 10 s?
- A10 m
- B100 m
- C2 m
- D40 m
- E200 m
21A car maintains a constant velocity of 100 km/hr for 10 seconds. During this interval its acceleration is
- A1000 km/hr
- B110 km/hr
- C10 km/hr
- Dzero
22An object covers a distance of 8 meters in the first second of travel, another 8 meters during the next second, and 8 meters again during the third second. Its acceleration in meters per second per second is approximately
- A0
- B24
- C5
- D8
Información
- Descripción
- Bachelors (Chapter 3) Physics Test sobre Mastering Physics: Chapter 3, creado por Jillian Caldwell el 13/02/2016.
- Autor
- Jillian Caldwell
- Idioma
- English
- Visitas
- 435
- Historial
- Creado el 13 feb 2016 · actualizado el 28 ago 2017
- Etiquetas
- Valoración
- 5,0 de 5 · 1 valoración Valora este test