Quiz (1) Physics

There are______ fundamental quantities

• 6

• 5

• 9

• 7

the dimensions of force are

• $M\ L^{-1}\ T\ ^{-2}$

• $M\ L^{-2}\ T\ ^{-2}$

• $M\ L^2\ T\ ^{-2}$

•  $M\ L^{ }\ T\ ^{-2}$ 

the following equation is dimensionally

 $v^2\ =v_0^2\ +2\ a\ d$  
Where :
 v is the final velocity
 $v_0$  is initial velocity
a is the acceleration
d is the distance

• Correct

• incorrect

Which one of these options is NOT a derived quantity?

• Area

• Volume

• Density

• Current

What is the SI unit of speed?

• m/s

• cm/s

• km/hour

• kg/m

What is the DIMENSION of acceleration?

• L³

• [L/T]

• [L/T²]

• LT

Which of the following is a derived unit?

• metre

• second

• kilogram

• joule

In order to find the x-component of a vector with magnitute 7 m and angle 30° we will use the formula...

• cos (30)

• sin(30)

• 7*sin(30)

• 7*cos(30)

The following vector (5 N, 290°) will be drawn on the _____ quadrant

• first

• second

• third

• fourth

Determine the direction and magnitude of the vector 〈7,18〉

• Direction 21.3°
  Magnitude 19.3
• Direction 68.7°
  Magnitude 19.3
• Direction 21.3°
  Magnitude 373
• Direction 68.7°
  Magnitude 373