Mass and weight

Mass is the amount of ____ in an object.

• density

• gravity

• matter

• volume

Answer explanation

Mass is the amount of matter in an object, making 'matter' the correct choice as it directly relates to the quantity of substance present.

Mass is measured in ____.

• Newtons

• litres

• centimetres

• kilograms

Answer explanation

Mass is measured in kilograms, making it the correct choice out of the given options.

Weight is a ____ caused by an object's mass in a ____ field.

• temperature, thermal

• pressure, electric

• volume, magnetic

• force, gravitational

Answer explanation

Weight is a force caused by an object's mass in a gravitational field, making 'force, gravitational' the correct choice.

Tags

NGSS.MS-PS2-4

NGSS.MS-PS2-5

Weight is measured in ____ ____.

• newton meters

• pascals

• kilograms

• Newtons

Answer explanation

Weight is measured in Newtons, not newton meters, pascals, or kilograms. Newtons are the correct unit of measurement for weight.

Tags

NGSS.MS-PS2-4

Gravitational field strength on the Moon is only 1.6 N/kg

On the Moon, Sam's mass is ____ and her weight is ____ than on Earth.

• the same, more

• more, the same

• less, the same

• the same, less

Answer explanation

On the Moon, Sam's mass remains the same, but her weight is less due to the lower gravity compared to Earth.

The ____ field affects an object's weight.

• magnetic

• electric

• gravitational

• thermal

Answer explanation

The correct choice is 'gravitational' because the gravitational field affects an object's weight by exerting a force on it based on the mass of the object and the acceleration due to gravity.

Tags

NGSS.MS-PS2-4

All forces are measured in ____.

• grams

• Newtons

• litres

• joules

Answer explanation

Forces are measured in Newtons, not grams, litres, or joules. Newton is the standard unit for force in the International System of Units (SI).

The gravitational field strength on Earth is approximately ____ N/kg.

• 10

• 25

• 8.9

• 11.2

Answer explanation

The correct answer is 10 N/kg because the gravitational field strength on Earth is approximately 10 N/kg.

What is the name of the instrument use to measure forces?

• Electronic balance

• scales

• metre stick

• Newton balance