Gravity, Momentum and Newton's Laws

What is the SI unit used to measure force? 

• pounds 
• grams 
• newtons 
• friction

The force of gravity acting on an object is the object's ______.

• mass
• matter
• weight 
• friction 

Tags

NGSS.MS-PS2-4

A person would weigh more on Jupiter than on the Earth because---

• Jupiter has less mass, and therefore less gravity
• Jupiter has more mass, and therefore less gravity.
• Jupiter has less mass, and therefore more gravity.
• Jupiter has more mass, and therefore more gravity

Tags

NGSS.MS-PS2-4

When will the forces of gravity between two objects be the GREATEST?

• when the masses of both objects are small and the objects are far apart

• when the masses of both objects are large and the objects are close together

• when the masses of both objects are small and the objects are close together

• when the masses of both objects are large and the objects are far apart

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-4

An object at rest stays at rest unless it experiences an unbalanced force.

• Newton's 1st Law of Motion

• Newton's 2nd Law of Motion

• Newton's 3rd Law of Motion

• Universal law of gravitation

The acceleration of an object depends on the mass of the object and the amount of force applied. If the mass of the object decreases, what happens to its acceleration?

• the object will speed up (increases)

• the object will slow down (decreases)

• the object will not move

• the object will continue at a constant speed

Tags

NGSS.MS-PS2-2

What is the momentum of a 0.20 kg baseball being thrown at a velocity of 40.0 m/s?

• 8 kg*m/s/s

• 8 kg*m/s

• 200 kg*m/s

• 200 kg*m/s/s

Tags

NGSS.HS-PS2-2

The unit kg*m/s/s can be used to express which of the following

• momentum

• velocity

• acceleration

• force

A 3,000 N force is accelerating a car at 3 m/s/s. What is the mass of the car?

• 9,000 kg

• 9,000 m/s/s

• 1,000 kg

• 1,000 m/s/s

Tags

NGSS.MS-PS2-2

What is the acceleration due to gravity on earth?

• 9.8 m/s
• 9.8 m/s²
• 3.14 m/s²
• 3.14 m/s

Tags

NGSS.MS-PS2-4

NGSS.MS-PS2-5