Physical Science - Chapter 1 Reading Check Quiz

Compared with the mass of a certain object on Earth, the mass of the same object on the Moon is

The same

The gain in speed each second for a freely falling object is about:

10 m/s

What is the acceleration of a car that maintains a constant velocity of 100 km/h for 10 s?

0 m/s^2

A 1-kg mass at the Earth's surface weighs about

10 N

A 300-kg bear grasping a vertical tree slides down at constant velocity. The friction force between the tree and the bear is

3000 N

Hang from a pair of gym rings and the upward support forces of the rings will always

Add up to equal your weight

An object in mechanical equilibrium is an object: - At rest - All of these - Moving with constant velocity - Having no acceleration

All of these

The two measurements necessary for calculating average speed are:

Distance and time

Whenever the net force on an object is zero, its acceleration

Is zero

Compared with a 1-kg block of solid iron, a 2-kg block of solid iron has the same: - All of these - Volume - Mass - Weight - None of these

None of these