Unit 2 Module 1 review

What kind of motion is modeled by the graph?

• constant speed

• no motion

• accelerating speed

• decreasing speed

Tags

NGSS.MS-PS3-1

What is Newton's second law?

• Force = mass x acceleration

• If the net force of an object is zero, the motion of the object does not change

• When an object applies a force on another object, the second object applies an equal but opposite force on the first object

Tags

NGSS.MS-PS2-2

What is gravity?

• A force that one object can apply to another object without touching it

• the force that pushes perpendicular to the object's surface

• an attractive force between all objects that have mass

• the forces two objects apply to each other

What are the 4 main forces that act on an object?

• 1. Gravity

  2. inertia

  3. applied

  4. normal

• 1. Friction

  2. Weight

  3. Normal

  4. Gravity

• 1. Applied

  2. Abnormal

  3. Friction

  4. Gravity

• 1. Gravity

  2. Friction

  3. Applied

  4. Normal

Tags

NGSS.MS-PS2-4

The rougher the surface, the (a)   friction

What is static friction?

• Friction of an object that is not moving

• When two solid surfaces slide over each other

• when an object rolls across a surface

• when a solid object moves through a fluid

What is an example of fluid friction?

• sky diving

• ice skating

• standing still

• running

What is an elastic collision?

• When objects collide and stick together

• When two objects collide and bounce off each other

• the force that two objects apply to each other

Tags

NGSS.MS-PS3-1

NGSS.MS-PS2-1

NGSS.MS-PS3-5

Balanced forces won't cause a change in (a)   .

Tags

NGSS.3-PS2-1

When the only force acting on objects is gravity, all objects...

• fall with the same acceleration

• Have no weight

• fall at different speeds

Tags

NGSS.MS-PS2-4