Force = Mass x Acceleration is Newton's ______ Law of Motion.
What is Second?
100
The spring in the mousetrap is an example of what kind of force?
What is "elastic force"?
100
When two forces acting on an object are not equal in size.
What is "unbalanced force"?
100
What is the average speed of a car that travels 20 meters in 5 seconds?
What is 4 meters per second?
200
Why does the steel ball keep moving even though your hand is no longer touching it?
What is "inertia"?
200
What kind of unbalanced force is the force of the fan?
What is a CONSTANT unbalanced force?
200
When the mousetrap is pulled back and the car is not moving yet, what kind of energy does the car have?
What is "potential energy"?
200
Occurring continuously over a period of time.
What is "constant"?
200
What is the average speed of a car that travels 3200 meters in 80 seconds?
What is 40 meters per second?
300
Increasing the mass or speed of an object will do what to the kinetic energy?
Increasing the mass or speed of an object will increase the kinetic energy. Decreasing the mass or speed of an object will decrease the kinetic energy.
300
Why does friction not stop the car from moving when the fan is on?
Friction does not stop the car from moving when the fan is on because the fan's force is larger than the force of friction.
300
When the mousetrap and the car are released, the potential energy is transformed into what?
What is "kinetic energy"?
300
Property of matter that makes matter resist a change in motion.
What is "inertia"?
300
What is the kinetic energy of an object if the mass is 4 kg and the velocity (average speed) is 6 m/s?
1. 4 kg x 1/2 = 2 kg
2. 6 m/s x 6 m/s = 36 m/s
3. 2 kg x 26 m/s =
4. 72 Joules
400
Newton's First Law of Motion is also known as this.
What is "The Law of Inertia"?
400
Give an example of Newton's Third Law of Motion.
The air from the fan goes in one direction and the car goes in the opposite direction.
400
What is the unbalanced force moving the car forward?
What is "the mousetrap"?
400
The sum of all forces acting on an object.
What is "net force"?
400
What is the kinetic energy of an object if the mass is 8 kg and the velocity (average speed) is 9 m/s?
1. 8 kg x 1/2 = 4 kg
2. 9 m/s x 9 m/s = 81 m/s
3. 4 kg x 81 m/s =
4. 324 Joules
500
What is Newton's First Law of Motion?
"An object at rest stays at rest and an object in motion stays in motion with the same speed and direction unless acted upon by an unbalanced force."
500
If the net force of an object is not zero then the object has an _________________ acting on it.
What is "unbalanced force"?
500
What is the unbalanced force that eventually stops the car from moving?
What is "force of friction"?
500
Explain the difference between potential energy and kinetic energy.
Potential energy is stored energy that can be released and kinetic energy is energy of motion.
500
What is the kinetic energy of an object if the mass is 0.6 kg and the speed is 4.2 m/s?
1. 0.6 kg x 1/2 = 0.3 kg
2. 4.2 m/s x 4.2 m/s = 17.64 m/s
3. 0.3 kg x 17.64 m/s =
4. 5.29 Joules