Physical Science| Midterm Practice 3

How does mass change with location in the universe?

• It increases

• It decreases

• It stays the same

• It depends on the planet's size

Answer explanation

Mass remains constant regardless of location in the universe. While weight can change due to gravitational differences, the intrinsic mass of an object does not vary with its location.

Tags

DOK Level 1: Recall

What happens to an object's weight as it moves to a location with stronger gravity?

• Increases

• Decreases

• Stays the same

• It's unpredictable

Answer explanation

An object's weight is directly affected by gravity. As it moves to a location with stronger gravity, the gravitational force acting on it increases, resulting in an increase in weight.

Tags

DOK Level 1: Recall

The SI unit for force, used to measure weight, is the _____________.

• Joule

• Newton

• Pascal

• Watt

Answer explanation

The SI unit for force is the Newton, which is used to measure weight. It is defined as the force required to accelerate a one-kilogram mass by one meter per second squared.

Tags

DOK Level 1: Recall

If two objects have the same volume but different masses, the denser object has more _____________.

• Volume

• Mass

• Weight

• Density

Answer explanation

If two objects have the same volume, the denser object must have more mass. Density is defined as mass per unit volume, so a higher density indicates a greater mass for the same volume.

Tags

DOK Level 1: Recall

The SI unit of mass is the _____________.

• Gram

• Kilogram

• Pound

• Ounce

Answer explanation

The SI unit of mass is the kilogram, which is defined as 1,000 grams. While grams, pounds, and ounces are units of mass, only the kilogram is recognized as the standard unit in the International System of Units (SI).

Tags

DOK Level 1: Recall

What property of matter can be observed or measured without changing the substance's composition?

• Chemical property

• Physical property

• Both

• Neither

Answer explanation

A physical property can be observed or measured without altering the substance's composition, such as color, mass, or volume. In contrast, a chemical property involves a change in composition, like reactivity or flammability.

Tags

DOK Level 1: Recall

Which of the following is an example of malleability?

• Dissolving sugar in water

• Hammering gold into thin sheets

• Pouring honey

• Melting ice

Answer explanation

Malleability refers to the ability of a material to be deformed under stress, such as being hammered into thin sheets. Hammering gold exemplifies this property, while the other options do not involve deformation of solids.

Tags

DOK Level 1: Recall

Which of the following is an example of solubility?

• Dissolving sugar in water

• Hammering gold into thin sheets

• Pouring honey

• Melting ice

Answer explanation

Dissolving sugar in water is a clear example of solubility, as it involves a solute (sugar) being incorporated into a solvent (water) to form a solution. The other options do not involve this process.

Tags

DOK Level 1: Recall

Which of the following is an example of viscosity?

• Dissolving sugar in water

• Hammering gold into thin sheets

• Pouring honey

• Melting ice

Answer explanation

Viscosity refers to a fluid's resistance to flow. Pouring honey is a clear example, as honey flows slowly due to its high viscosity, unlike the other options which do not demonstrate this property.

Tags

DOK Level 1: Recall

What units are commonly used for the density of a liquid?

• kg/m³

• lb/gal

• g/cm³

• None of these

Answer explanation

The density of a liquid is commonly expressed in g/cm³, which is a standard unit in chemistry. While kg/m³ and lb/gal are also used, g/cm³ is the most prevalent for liquids.

Tags

DOK Level 1: Recall