Quiz: Physics Questions For 12th Grade Students!
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- 1.One possible unit of speed is
- A.
Miles per hour
- B.
Light years per century
- C.
Kilometers per hour
- D.
All of the above
- E.
None of the above
- 2.When you look at the speedometer in a moving car, ou can see the car's
- A.
Average distance traveled
- B.
Intantaneous acceleration
- C.
Average speed
- D.
Instantanious speed
- E.
Average acceleration
- 3.Acceleration is defined as the CHANGE in
- A.
Time it takes to move from one place to another
- B.
Velocity of an object
- C.
Distance divided by the time interval
- D.
Velocity divided by the time interval
- E.
Time it takes to move from one speed to another speed
- 4.
- A.
0.17 m/s^2
- B.
1.67 m/s^2
- C.
6 m/s^2
- D.
18 m/s^2
- 5.As an object falls freely in a vacuum,its
- A.
Velocity increases
- B.
Acceleration increases
- C.
Both a and b
- D.
None of these
- 6.In the absense of air resistance,objects fall at constant
- A.
Speed
- B.
Velocity
- C.
Acceleration
- D.
Distance each successive speed
- E.
All of the above
- 7.Suppose an object isd in free fall. each second the object falls
- A.
The same distance as in the second before
- B.
A larger distance than the second before
- C.
With the same instantanious speed
- D.
With the same average speed
- E.
None of the above
- 8.If you drop a feather and a coin at the same time in a tube filled with air,which will reach the bottom first
- A.
Feather
- B.
Neither_ they will both reach the bottom at the same time
- C.
Coin
- 9.Consider drops of water leaking from the water fauset. as the drops fall they
- A.
Remain a fixed disstance
- B.
Get farther
- C.
Get clother
- 10.Suppose you take a trip that covers 180 km and takes 3 hours to make. your average speed is
- A.
30 km/h
- B.
60 km/h
- C.
180 km/h
- D.
360 km/h
- E.
540 km/h
- 11.A ball is thrown straight up. At the top of its path its instantaneious speed is
- A.
0 m/s
- B.
About 5m/s
- C.
10 m/s
- D.
20 m/s
- E.
50 m/s
- 12.A car accelerates at 2 m/s^2. Assuming the car starts from rest, how much time does it need to accelerate to a speed of 20 m/s?
- A.
2 sec
- B.
10 sec
- C.
20 sec
- D.
40 sec
- E.
All of the above
- 13.If a freely falling object were somehow equipped with a speedometer,its speed reading would increase each second by
- A.
About 5 m/s
- B.
About 10 m/s
- C.
About 15 m/s
- D.
A variable amount
- 14.A freely falling object starts from res. after falling for 6 sec, it will have a speed of about
- A.
6 m/s
- B.
30 m/s
- C.
60 m/s
- D.
300 m/s
- E.
More than 300 m/s
- 15.A freely falling object starts from rest. After falling for 1 sec, it will have a speed of about
- A.
5 m/s
- B.
10 m/s
- C.
20 m/s
- D.
40 m/s
- E.
None of the above
- 16.Suppose a jumper claims a hang time of 2 sec. then that jumper must be able to jump vertical distance of
- A.
1 m.
- B.
2 m.
- C.
3 m
- D.
4 m
- E.
5 m
- 17.A vector is a quantity that has
- A.
Magnitude and time
- B.
Time and direction
- C.
Magnitude and direction
- 18.A scalar is a quantity that has
- A.
Direction
- B.
Magnitude
- C.
Time
- D.
Color
- 19.Whichof the following would not be considered a projectle?
- A.
A cannonball thrown straight up
- B.
A cannonball rolling down a slope
- C.
A cannonball rolling off the egde of a table
- D.
A cannonball thrown throught thee air
- E.
All of the above are projectiles
- 20.The hortizontal component of a projectile's velocity is independent of
- A.
The range of the projectile
- B.
Time
- C.
The vertical component of its velocity
- 21.In absence of air friction, the hortizontal component of a projectile's velocity doesnt change as the projectile moves.
- A.
Sometimes true
- B.
Always true
- C.
Always false
- 22.At the instant a ball is thrown hortizontally with a large force, an identical ball is dropped from the same height. which ball hits the ground first?
- A.
Neither. they both will hit the ground at the same time
- B.
The dropped ball
- C.
The hortizontally thrown ball
- 23.In the absence of air resistance, the angle at which a thrown ball will go the farthest is
- A.
15 degrees
- B.
30 degrees
- C.
45 degrees
- D.
60 degrees
- E.
75 degrees
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