Physics review

These are quantities that are fully describe by a magnitude alone.

• acceleration

• scalar

• speed

• vector

I. The total angle value of a right triangle is 190˚.

II. Angle C in a right triangle measures 90˚.

• only statement I is correct

• only statement II is correct

• both statements are correct

• both statements are incorrect

In free fall, one of the characteristics of air resistance is it

• does not oppose the motion

• decreases the mass of the object

• increases the mass of the object

• decrease the speed of the object

In a vector component, the relationship between the angle of hypotenuse and the adjacent side in a right triangle is called the cosine function. This function is equal to the value of

• adjacent

• measurement

• x component

• y component

In this formula =∆v/∆t , what does  ∆   mean?

• total

• change

• zero

• at rest

Convert 15 km to m.

•  1,500 m

• 15 000m

• 15 m

• 150 m

I. It is possible for an object to travel at a constant velocity and constant acceleration at the same time.

II. Zero acceleration means constant velocity.

• only statement I is correct

• only statement II is correct

• both answers are correct

• both answers are incorrect

It is referring to the number of physical quantities of a measurement.

• s.i unit

• numerical value

• unit of prefixes

• unit of measurement

It is defined as the acceleration of an object in an instant.

• veloc

• acceleration

• instantaneous velocity

• instantaneous acceleration

It is a specific magnitude of physical quantity that has been adopted by convection.

•  s.i unit

•  numerical value

• unit of prefixes 

• unit of measurement