Newton's First Law
Newton's Second Law
Newton's Third Law
Speed, Velocity, and Acceleration
Mystery
100
What does Newton's First Law of Motion state?
An object at rest stays at rest and an object in motion stays in motion unless acted on by an unbalanced force.
100
What is the equation for Newton's Second Law of Motion?
Force = mass * acceleration
100
What does Newton's Third Law of Motion state?
For every action there is an equal and opposite reaction.
100
What is the definition of speed?
The distance an object travels in a specific amount of time.
100
What equation do you use to calculate acceleration?
A = F/m
200
What is Newton's First Law of Motion also know as?
The Law of Inertia
200
What are the units for Force, Mass, and Acceleration?
Force is in Newtons (N)
Mass is in kilograms (kg)
Acceleration is in meters per second squared (m/s^2)
200
What is the action and reaction in the picture below?
Action = turn engines on and gas/heat push down
Reaction = rocket flies up in the air
200
What is the definition of velocity?
The speed of an object in a given direction.
200
What equation do you use to calculate mass?
m = F/a
300
The pictures above show someone in a car driving and the second pictures is when the driver slams on the breaks in order to come to a complete stop. How is Newton's First Law of Motion at work?
An object in motion will remain in motion unless acted on by an unbalanced force.
300
If Sam throws a ball that weighs 2 kg at an acceleration of 10 m/s^2. What is the net force acting on the ball?
F = m*a
F= 2 kg * 10 m/s^2
F= 20N
300
How can a balloon be an example of Newton's Third Law of Motion?
Answers may vary.
300
How can you tell if something is accelerating?
If the object is speeding up, slowing down, or changing direction.
300
If Thomas shoots an arrow that weighs 0.6 kg with a force of 2,000 N, what is the acceleration of the arrow?
a = F/m
a = 2,000 N / 0.6 kg
a = 3,333.33 m/s^2
400
Give an example of the Law of Inertia.
*Answers will vary
400
If Sally pushes a cart with a force of 20 N and the cart weighs 5 kg, what is the acceleration of the cart?
A = F/m
A = 20 N / 5 kg
A = 4 m/s^2
400
If two people who weighed the same amount are each standing on a skateboard and push away from each other with equal force, what will happen to them? Relate it to Newton's Third Law.
They will both move back the same distance.
400
Give an example of speed, velocity, and acceleration.
Speed = 5 m/s
Velocity = 5 m/s East
Acceleration = 0 to 5 m/s
*just examples
400
What is the difference between potential and kinetic energy?
Potential energy is the energy held by an object because of its position. Kinetic energy is the energy an object possesses due to its motion.
500
Do objects with greater mass have more or less inertia? Why?
Objects with greater mass have greater inertia because it takes a greater amount of force to move the object with more mass.
500
If Steve kicks a medicine ball with a force of 15 N and it accelerates at 3 m/s^2, what is the mass of the medicine ball?
m = F/a
m = 15 N / 3 m/s^2
m = 5kg
500
A diver dives off of a raft - what happens to the diver? What happens to the raft? How does this relate to Newton's Third Law of Motion?
The diver moves forward into the water and the raft moves backwards. The action of the diver pushes the raft back and the action of the raft pushes the diver forward.
500
If you drove your car 300 miles in 5 hours. If we assume you drove the same speed the entire time, what speed did you drive?
Speed = distance / time
Speed = 300 miles / 5 hours
Speed = 60 miles per hour
500
At which two points is there the greatest potential energy and at which two points is there the greatest kinetic energy?
Potential = W and Y
Kinetic = X and Z