Force and Motion

Acceleration/Motion

200

How can I be both in motion and not in motion at the same time?

By changing your reference point

300

What is the Acceleration Formula (how do you find Acceleration)?

(Final Speed - Initial Speed) / Time

400

What are the three things acceleration can refer to?

Speeding up, Slowing down, and Changing Direction

500

Draw a Force Diagram showing all of the Forces acting on a Train that is accelerating

Cortez, you're gonna have to draw this one on the board, buddy (If you're studying for this at home, the force pushing the train forward has to be greater than the force opposing the train to show that it is speeding up, OR the force pushing the train forward has to be less than the force opposing the train to show that it is slowing down)

Friction

200

What type of Friction occurs when you're moving your dresser from one corner of your room to another?

Sliding Friction

300

What type of Friction occurs when a roller coaster stops moving?

Rolling Friction

400

What type of Friction occurs when you are trying to push a refrigerator but it doesn't move?

Static Friction

500

What type of Friction is Air Resistance?

Fluid Friction

Force

300

What is the unit used to measure Force?

A newton

400

What are the two forces acting on an object that is falling?

Gravity and Fluid Friction (air resistance)

500

Draw a Force Diagram showing all of the Forces acting on a Train that is moving at a constant speed

Cortez, you're gonna have to draw this one on the board, buddy (if you're studying at home, all of the Forces must be BALANCED. If some are greater than the opposite force, it would be accelerating

Newton's Laws

200

What is Newton's Third Law of Motion?

Every action has an equal and opposite reaction

300

What is Newton's First Law of Motion?

An object in motion stays in motion unless acted upon by an unbalanced force, and an object at rest stays at rest unless acted upon by an unbalanced force

400

What is Newton's Second Law of Motion?

Acceleration = Force / Mass

500

What are 2 things I can do to increase acceleration, according to Newton's Second Law of Motion?

Increase the amount of force applied to the object, or decrease the mass of the object

Let's Try It!

100

Thomas the Tank Engine travels 84 miles in 7 hours. What is Thomas' speed?

12 mph

200

If a car has to travel 1,500 miles in 3 hours in order to return to its point of origin, what is the car's velocity?

-500 mph

300

Superman accelerates from 40 mph to 120 mph in 8 seconds in order to catch a citizen who is falling. What is Superman's rate of acceleration?

10 mph/s

400

What is the acceleration of a 4,000 kg car that is pushed with 36,000 N of force?

9 N/kg

500

What is the momentum of a 2,000 kg bus that is driving at 40 mph?

80,000 kg*mph