Forces Balanced vs Unbalanced Net Force Speed Velocity Acceleration Graphs Newton’s Laws of Motion 100 100 100 100 100 200 200 200 200 200 300 300 300 300 300 400 400 400 400 400 500 500 500 500 500

Balanced vs Unbalanced Prompt 100 Points When one force is greater than another, we say the forces are

Balanced vs Unbalanced 100 Points

Balanced vs Unbalanced 200 Points A book sits at rest on a table. The forces acting on the book are….

Balanced vs Unbalanced 200 Points

Balanced vs Unbalanced 300 Points A car pulls up to a red light. As the car slows down the forces become... Frictional Balanced Unbalanced

Balanced vs Unbalanced 300 Points

Balanced vs Unbalanced 400 Points Unbalanced forces cause objects to ….

Balanced vs Unbalanced 400 Points Accelerate, change speed and/or direction

MINERALS 500 Points A space probe traveling through outer space has balanced forces acting on it. How is this possible since the space probe is in motion?

Balanced vs Unbalanced 500 Points The space probe is moving at a constant speed.

What is the net force acting on the box? Net Force 100 Points What is the net force acting on the box?

Net Force 100 Points 5N – 5N = 0N Net Force = 0 Newtons

What is the net force acting on the couch? Net Force 200 Points What is the net force acting on the couch?

Net Force 200 Points 25N + 20N = 45 N

Net Force 300 Points What is the net force acting on the cart and what direction will it accelerate?

Net Force = 5 Newtons to the right Net Force 300 Points 4N+4N=8N 8N-3N=5N Net Force = 5 Newtons to the right

Net Force 400 Points What is the net force acting on the box and which direction will the object accelerate?

Net Force 400 Points 100 N, up

Net Force 500 Points Which diagram shows a greater net force? Which direction will the box accelerate?

Diagram A, box will accelerate to the right Net Force 500 Points Diagram A, box will accelerate to the right

Speed, Velocity, Acceleration 100 Points A motorcycle travels 40 mi/hr northwest. Is this an example of speed, velocity, or acceleration?

Speed, Velocity, Acceleration 100 Points

Speed, Velocity, Acceleration 200 Points An airplane traveling 200 km/hr slows as it approaches the ground. Is this an example of speed, velocity, or acceleration?

Speed, Velocity, Acceleration 200 Points Negative acceleration

Speed, Velocity, Acceleration 300 Points Which of the following do you need to find an object’s velocity? Distance and Time Distance, Mass, and Time Distance, Time, and Direction

Speed, Velocity, Acceleration 300 Points C. Distance, Time, and Direction

Speed, Velocity, Acceleration 400 Points What is acceleration? (Give the full definition.)

Speed, Velocity, Acceleration 400 Points Acceleration is a change in speed, direction, and/or both.

Speed, Velocity, Acceleration 500 Points What does this picture illustrate? Speed, Velocity, or Acceleration? Explain.

Speed, Velocity, Acceleration 500 Points Acceleration; the jumper is changing direction and possibly speed

Describe the object’s motion in the distance vs time graph. Graphs 100 Points Describe the object’s motion in the distance vs time graph.

Graphs 100 Points Constant Speed

Who is traveling the fastest? Graphs 200 Points Who is traveling the fastest?

Graphs 200 Points Biker, steeper slope

What does the horizontal line represent in the distance vs time graph? Graphs 300 Points What does the horizontal line represent in the distance vs time graph?

Object is at rest, no motion Graphs 300 Points Object is at rest, no motion

Between which 2 points is the bus slowing down? Graphs 400 Points Between which 2 points is the bus slowing down?

Graphs 400 Points B and C

Between which 2 points does the bus come to a stop? Graphs 500 Points Between which 2 points does the bus come to a stop?

Graphs 500 Points C and D

Newton’s Laws of Motion 100 Points Newton’s 1st Law of Motion is also known as the law of ___ Action-Reaction Inertia Force and Acceleration

Newton’s Laws of Motion 100 Points Inertia

Newton’s Laws of Motion 200 Points Which law of motion (1,2 or 3) does the picture represent? Why?

Newton’s Laws of Motion 200 Points 3rd law, air coming out=action; balloon going in opposite direction=reaction

Newton’s Laws of Motion 300 Points When a car suddenly comes to a stop, a lunch bag lying in the back seat will move forward. Why?

Newton’s Laws of Motion 300 Points The lunch bag’s inertia will cause it to continue moving.

Newton’s Laws of Motion 400 Points How much force is needed to accelerate a 6 kg box at a rate of 0.5 m/s2? Force = mass x acceleration

Newton’s Laws of Motion 400 Points Net Force = 3 Newtons

Newton’s Laws of Motion 500 Points If a force of 25 Newtons is applied to all 3 of the objects below, which one will have the most acceleration? Why? Object Mass Object X 36 kg Object Y 21 kg Object Z 44 kg

Newton’s Laws of Motion 500 Points Object Y, least mass