Module 3 Forces and Newton's Laws

Which term best describes the forces on an object with a net force of zero?

• acceleration
• balanced forces
• inertia
• unbalanced forces

How does the gravitational force change as two objects move farther apart?

• it increases
• it decreases
• it remains constant
• it is zero

This question has three parts. First, answer Part A. Then, answer Part B, and then C. Part A If the objects in the data table above all fell the same distance, which object fell with the greatest average speed?

• Object A
• Object B
• Object C
• Object D

Tags

NGSS.MS-PS3-1

This question has three parts. First, answer Part A. Then, answer Part B, and then C. Part B Which object was affected the most by air resistance?

• Object A
• Object B
• Object C
• Object D

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

This question has three parts. First, answer Part A. Then, answer Part B, and then C. Part C Explain why the four objects do not fall with the same speed.

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-4

Find your mass if a scale on Earth reads 650 N when you stand on it. F=ma

You weigh yourself at the top of a high mountain and the scale reads 728 N. If your mass is 75 kg, what is the gravitational strength at your location? F=mg

Tags

NGSS.MS-PS2-4

According to Newton's first law of motion, a moving object _____.

• gradually slows and then stops
• has a constant positive acceleration
• transfers energy to its environment
• continues moving at the same velocity unless a force acts on it

_____ measures an object's tendency to resist changing its motion.

• Acceleration
• Gravity
• Inertia
• Mass

The _____ is the combination of all the forces acting on an object.

• direction of motion
• force pair
• Inertia
• net force

Tags

NGSS.MS-PS2-2