Quiz Fizik

Which physical quantity is a vector quantity?

• Mass

• Momentum

• Wavelength

• Potential difference

Answer explanation

Momentum is a vector quantity because it has both magnitude and direction, unlike mass, wavelength, and potential difference, which are scalar quantities.

Which of the following derived quantity is equivalent to Length Time?

• Area

• Speed

• Acceleration

• Momentum

Answer explanation

Length Time is equivalent to Area because Area is calculated as Length multiplied by Length (L x L), while Speed, Acceleration, and Momentum involve different combinations of Length and Time.

The physical quantity stated in the food label is …

• Vector quantity

• Base quantity

• Derived quantity

• Manipulated quantity

Answer explanation

The physical quantity on a food label, such as calories or grams, is a derived quantity because it is calculated from base quantities (like mass and energy) rather than being a fundamental measurement itself.

Which classification of physical quantities is correct?

• Temperature, Area, Time, Weight

• Area, Time, Weight, Temperature

• Weight, Temperature, Area, Time

• Time, Weight, Temperature, Area

Answer explanation

The correct classification is Temperature, Area, Time, Weight. Temperature is a measure of thermal energy, Area is a measure of space, Time is a measure of duration, and Weight is a measure of force due to gravity.

Time, speed, energy, density belong to which of following quantities?

• Scalar

• Base

• Vector

• Derived

Answer explanation

Time, speed, energy, and density are derived quantities because they are calculated from base quantities (like mass, length, and time) using mathematical relationships. Thus, the correct choice is 'Derived'.

Which of the following graphs obey the equation F= ma where m is a constant?

Answer explanation

The graph that shows a linear relationship between force (F) and acceleration (a) with a constant slope represents F=ma, where m is constant. This indicates that as acceleration increases, force increases proportionally.

The trolley is pulled by a force 20 N. What is the responding variable?

• Force

• Mass

• Time

• Acceleration

Answer explanation

The responding variable is acceleration, as it is the result of the applied force of 20 N on the trolley, according to Newton's second law (F=ma). Force is the cause, while acceleration is the effect.

Which combination is correct?

Answer explanation

The correct combination is the one that aligns with the given criteria or context. Ensure to evaluate each option carefully to identify the one that meets all requirements.

The displacement of Alex to reach the same point where the ride began is …

• 0.0 m

• 1.5 m

• 3.0 m

• 9.0 m

Answer explanation

The displacement measures the shortest distance from the starting point to the ending point. Since Alex returns to the same point, the displacement is 0.0 m.

Which of the following ticker tape chart shows an object moving with decreasing velocity?

Answer explanation

The correct ticker tape chart shows an object with decreasing spacing between the marks over time, indicating a reduction in velocity. As the marks get closer together, the object is slowing down.