Describing Motion
Amount of matter in something and measured by using kg.
What is...?
What is MASS?
How many laws are included in Newton's Laws of Motion?
3
This law states that energy cannot be created nor destroyed. It can be transformed or transferred.
What is...?
What is the law of conservation of energy?
15 N East and 12 N West. What is the net force in what direction?
3 N East
The rate at which velocity changes.
What is...?
What is Acceleration?
If an object is moving to the left, what direction is friction acting?
right
What is the equation you would use to find the net force?
Fnet=mobjecta
When does an object have the most potential energy?
When the object is at a peak at rest.
A duck has a momentum of 3 kg x m/s and a mass of 2 kg. What is speed/velocity the duck is going?
1.5 m/s
The symbol for momentum in physics.
What is...?
What is p?
An object is at rest with the forces acting in equal and opposite directions, what are these forces?
Force of gravity and support force
This law states that an object in a straight-line motion will stay in motion unless acted on by an unbalanced force.
What is...?
What is Newton's 1st law of motion?
What has less momentum a dog sleeping on a chair or a hamster running around in a hamster ball?
a dog sleeping in a chair
What is the acceleration of an object that is moving north with a force of 36 N and a mass of 5 kg? INCLUDE UNITS
7.2 m/s2
What is velocity?
A speed of an object in a particular direction.
How does Interia connect to mass and why?
Interia depends on the mass because inertia is the likelihood of changing motions.
What is Newton's 3rd law of motion?
For every action force, there is an equal magnitude but opposite direction reaction force.
What is the law of conservation of momentum?
Use the terms collisions in your definition.
The momentum of a system is conserved. the momentum before a collision must be equal to the total momentum after the collision
What is the gravitational potential energy of a 1200 kg elephant that is 35 m above the ground? INCLUDE UNITS.
4.116 x 105 J or 411,600 J
Give an example of an unbalanced force.
A car speeding up, a bicycle turning around a corner, etc.
How can an object be in equilibrium? Give an example.
Use the terms force and motion.
The total net force on an object is equal to 0 newtons.
Object is at rest or object in constant moving velocity.
Give an example of each of Newton's Laws of Motion.
1st law: not wearing a seat belt, a ball rolling down a hill, etc.
2nd law: A semi truck needs a bigger force to be applied than a car to accelerate from a stoplight, easier to push a empty grocery cart than a full one.
3rd law: bat puts force on the ball and the ball puts same force on the bat, ball hits ground the ground pushes back up on the ball
What is the difference between potential and kinetic energy?
Potential energy depends on mass and height whereas kinetic energy depends on mass and velocity.
A car decelerates from 70 m/s to 30 m/s in 4 seconds. What is the acceleration?
10 m/s
A car accelerates at 30 m/s2 when a 100N force is applied. What is the mass of the car after the force is applied?
3.3 kg