# Sir Eman's Online Physics Quiz No. 03

16 Questions | Total Attempts: 134  Settings  Topic: Describing Linear and Non-Linear MotionTime Limit: 30 minutesReminders:+ Provide the Necessary Information. Type your WHOLE NAME. No nicknames please. + The quiz is TIMED. You can only answer the quiz within the set amount of time given to you. + You might need scratch paper for some problems. (yes may SOLVING po)+ Open books and notebooks. Yes calculators. Yes internet (kung andun ba ang sagot eh)+ Have your calculators ready beside you. You might be computing something =]+ IP Detection is enabled. Therefore: I can track your individual IP addresses, I can determine the TIME you took the quiz, I know how long it took you to answer the quiz, etc. + You are only allowed to take the quiz ONCE. PS: + If i ever detected CHEATING (e. G.

• 1.
The average speed of a horse that gallops a distance of 10 kilometers in a time of 30 minutes is ______.express answers in kph. example: 90 kph
• 2.
As an object freely falls, its
• A.

Velocity increases

• B.

Acceleration increases

• C.

Both of these

• D.

None of these

• 3.
If an object falls with constant acceleration, the velocity of the object must
• A.

Be constant also.

• B.

Continually change by the same amount each second.

• C.

Continually change by varying amounts depending on its speed.

• D.

Continually decrease.

• E.

None of these

• 4.
Drop a rock from a 5-m height and it accelerates at 10 m/s2 and strikes the ground 1 second later. Drop the same rock from a height of 10 m and its acceleration of fall is
• A.

• B.

• C.

The same

• D.

More than double

• 5.
At one instant an object in freefall is moving downward at 50 m/s. One second later its speed is about
• A.

25 m/s

• B.

50 m/s

• C.

55 m/s

• D.

60 m/s

• E.

100 m/s

• 6.
At one instant an object in freefall is moving upward at 50 m/s. One second later its speed is about
• A.

100 m/s

• B.

60 m/s

• C.

55 m/s

• D.

50 m/s

• E.

40 m/s

• 7.
While a car travels aroud a circular track at constant speed its
• A.

Acceleration is zero

• B.

Velocity is zero

• C.

Both of these

• D.

None of these

• 8.
An apple falls from a tree and hits the ground 5 meters below. It hits the ground with a speed of about
• A.

5 m/s

• B.

10 m/s

• C.

15 m/s

• D.

20 m/s

• E.

Not enough information was given to estimate

• 9.
Motion that is under the influence of gravity alone.
• 10.
When a rock thrown straight upwards gets to the exact top of its path, its
• A.

Velocity is zero and its acceleration is zero.

• B.

Velocity is zero and its acceleration is about 10 m/s^2

• C.

Velocity is about 10 m/s and its acceleration is zero.

• D.

Velocity is about 10 m/s and its acceleration is about 10 m/s^2

• 11.
If a projectile is fired straight up at a speed of 30 m/s, the total time to return to its starting position is about
• A.

3 seconds

• B.

4 seconds

• C.

5 seconds

• D.

6 seconds

• 12.
Uniformly accelerated motion that is a combination of horizontal and vertical motion that is independent of one another.
• 13.
It is the path followed by a projectile thrown at an angle.
• 14.
A bullet is dropped from the top of the Empire State Building while another is fired downward from the same location. Neglecting air resistance, the acceleration
• A.

Of the fired bullet is greater

• B.

Of the dropped bullet is greater

• C.

Each bullet is 9.8 m/s^2

• D.

Malay ko ba? anung klaseng tanong ito?

• 15.
Which two graphs best represent the motion of an object falling freely from rest near the Earth's surface?
• A.

Set 1

• B.

Set 2

• C.

Set 3

• D.

Set 4

• 16.
Which graph best represents the motion of a block accelerating uniformly down an inclined plane?
• A.

(1)

• B.

(2)

• C.

(3)

• D.

(4)

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