Laws of Motion

If you double the mass of an object with the same force apply on it, the acceleration will

• double
• cut in half
• the same
• zero

Tags

NGSS.MS-PS2-2

What kind(s) of objects have inertia?

• all objects with mass
• only objects at rest
• only objects in motion
• only objects whose motion is being changed

After a cannonball is fired into frictionless space, the amount of force needed to keep it going equals

• twice the force with which it was fired
• the same amount of force with which it was fired
• 1/2 the force with which it was fired
• zero, since no force is required to keep it moving. 

Tags

NGSS.MS-PS2-2

The acceleration produced by a net force on an object is

• inversely proportional to the mass of the object.
• directly proportional to the magnitude of the net force.
• in the same direction as the net force.
•  all of the above

Tags

NGSS.MS-PS2-2

A 10-kg brick and a 1-kg book are dropped in a vacuum. The force of gravity on the 10-kg brick is

• 10 times as much as the force on the 1-kg book

• zero.

• the same as the force on the 1-kg book.

• none of the above

A 20 kg bike accelerates at 10 m/s².  what was the net force

• 25 Newtons
• 20 Newtons
• 200 Newtons
• 10 Newtons

Tags

NGSS.MS-PS2-2

The tendency of an object to stay in motion or at rest is called 

• velocity
• acceleration
• speed
• inertia

What is the difference between mass and weight?

• mass is how much matter is in an object, and weight is the gravitational pull on that object
• mass and weight are the same
• weight affects how much mass is in an object
• weight is determined by how many atoms make up an object

Force and acceleration have

• a direct relationship

• an inverse relationship

Tags

NGSS.MS-PS2-2

Mass and acceleration have

• a direct relationship

• an inverse relationship

Tags

NGSS.MS-PS2-2