Net Force. Weight vs mass

A scale hanging at rest at the grocery store shows a mass of 1.0 kg. What is the weight of your food? Assume g = 9.8 m/s^2

• 9.8 Newtons

• 3 pounds.

• 9.8 pounds

• 9.8 kg

What is the net force in the picture?

• 350 Newtons

• 200 Newtons to the left

• 50 Newtons to the left.

• 50 Newtons to the right

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

What does mass measure in an object?

• Weight

• Inertia

• Volume

• Density

What is inertia?

• An object's speed

• An object's resistance to changes in motion

• An object's weight

• An object's volume

What does weight measure?

• The force of gravity due to the planet

• The mass of an object

• The volume of an object

• The density of an object

Tags

NGSS.MS-PS2-4

What is the formula for weight?

• F = ma

• F = w = mg

• F = mv

• F = m/v

Does your mass change on the moon?

• Yes, it increases

• Yes, it decreases

• No, it remains the same

• It depends on the time of day

Tags

NGSS.MS-PS2-4

What is the value of "g" on Jupiter?

• 9.8 m/s²

• 1.7 m/s²

• 26 m/s²

• 0 m/s²

Tags

NGSS.HS-PS2-4

Describe the situation in the picture

• dynamics equilibrium

• static equilibrium

• unbalanced forces

• acceleration = 6 m/s^2

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

Which of the following is true about "g" on different planets?

• It is always 9.8 m/s²

• It varies based on the planet's mass

• It is the same as on Earth

• It is always less than 5 m/s²

Tags

NGSS.HS-PS2-4