# Physics 2 Online Quiz 1: Dynamics

15 Questions | Total Attempts: 3595  Settings  This quiz covers the topics in motion specifically speed/velocity, acceleration, uniform motion, uniformly accelerated linear motion and forces/friction.   The quiz is composed of 15 conceptual and multiple-choice items which can only be answered for 15 min. The questions will be shown one after the other, thus each questions must be answered in less than a minute.   Your score will be shown after taking the quiz.   Note that taking the quiz more than once, without proper notification from your instructior, nullifies your quiz.   All your actions are properly recorded and will be sent to your instructor's account. Be Honest! Best of luck guys!

• 1.
Study the motion of the body in each case:a. a ship moving at 10 knots in a straight path.b. a car moving on a straight path and then slowing down to stopc. a storm initially moving at 50 km/h northeast and then 60 km/h eastwardd. a bus moving at 40 km/h around a curve.Which bodies move with constant speed?
• A.

C and d only

• B.

A and d only

• C.

B and c only

• D.

A, b and c

• 2.
Study the motion of the body in each case:a. a ship moving at 10 knots in a straight path.b. a car moving on a straight path and then slowing down to stopc. a storm initially moving at 50 km/h northeast and then 60 km/h eastwardd. a bus moving at 40 km/h around a curve.Which body move with constant velocity?
• A.

A only

• B.

B only

• C.

C only

• D.

D only

• 3.
Study the motion of the body in each case:a. a ship moving at 10 knots in a straight path.b. a car moving on a straight path and then slowing down to stopc. a storm initially moving at 50 km/h northeast and then 60 km/h eastwardd. a bus moving at 40 km/h around a curve.Which bodies are accelerating?
• A.

A and b only

• B.

B and c only

• C.

C and d only

• D.

B, c and d only

• 4.
A car travels at a constant speed of 20 m/s.  After 4 sec, its speed is ____.
• A.

10 m/s

• B.

20 m/s

• C.

60 m/s

• D.

80 m/s

• 5.
Two boys are pushing a jeep, with a force of 20 N each.  The jeep does not move.  The force of friction between the tires and the road is ________.
• A.

Less than 40 N

• B.

Greater than 40 N

• C.

Equal to 20 N

• D.

Equal to 40 N

• 6.
As an object freely falls, its  _________.
• A.

Velocity remains constant

• B.

Velocity increases

• C.

Velocity decreases

• D.

Acceleration increases

• 7.
While a car travels around a circular track at constant speed, its ________.
• A.

Acceleration is zero

• B.

Speed is zero

• C.

Both a and b

• D.

Neither a nor b

• 8.
The force of friction on a sliding object is 10 N.  The applied force needed to maintain a constant velocity is ________.
• A.

More than 10 N

• B.

Less than 10 N

• C.

0 N

• D.

10N

• 9.
Neglecting friction, a large block of ice and a small block of ice start sliding down an inclined plane together.  The heavier block will get to the bottom _____.
• A.

Before the light block

• B.

After the light block

• C.

At the same time as the light block

• D.

Melted and same size as the light block

• 10.
A block is dragged without acceleration in a straight-line path across a level floor surface by a force of 6 N.  What force of friction between the block and the surface?
• A.

Less than 6 N

• B.

Greater than 6 N

• C.

6 N

• D.

0 N

• 11.
<!--[if !supportLists]-->14.   <!--[endif]-->The frictional force between two surfaces in contact does not depend on _____________.
• A.

The normal force pressing one against the other

• B.

The areas of the surfaces

• C.

If the surfaces are stationary or in relative motion

• D.

Whether or not a lubricant is used

• 12.
How many forces are acting on box m in diagram (a) below? *Friction is present in all surfaces.
• A.

3

• B.

4

• C.

5

• D.

6

• 13.
How many forces are acting on box M in diagram (a)?*Friction is present in all surfaces.
• A.

3

• B.

4

• C.

5

• D.

6

• 14.
How many forces are acting on the two boxes in diagram (a)?*Friction is present in all surfaces.
• A.

6

• B.

7

• C.

8

• D.

9

• 15.
How many forces are acting on the two boxes in diagram (b)?*Friction is present in all surfaces.
• A.

8

• B.

9

• C.

10

• D.

11

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