The mass of a pet turtle that weighs 10 N is
A)about 1 kg.
B)about 10 kg.
C)about 100 kg.
D)about 1000 kg.
E)none of these

Question

Quizplus · Accepted Answer

The mass of an object is the amount of matter it contains, and it is measured in kilograms. The weight of an object is the force gravity exerts on it and is measured in newtons (N). Since weight is given as 10 N, and the gravitational field strength on Earth is roughly 10 N/kg, the mass of the turtle can be calculated as weight divided by gravitational field strength:

mass = weight/gravity = 10 N/10 N/kg = 1 kg

Therefore, the best choice is A) about 1 kg.

The Mass of a Pet Turtle That Weighs 10 N