Which Law?: bumper cars crash into each other and bounce back
3rd Law
What kind of energy does an object in motion have?
Kinetic Energy
Which law supports why you should wear a seatbelt in the car?
Newton's First Law
What kind of energy does an object at rest have?
Potential Energy
What is friction?
Resistance from two surfaces rubbing against each other
what is Newton's 1st Law?
An object at rest will stay at rest, and an object in motion will stay in motion unless acted on by an unbalanced force
Which Law?: Pushing a child on a swing requires less force than pushing an adult
Newton's second law
What is the formula for the Newton's Second Law?
F=MxA
Which surface will a ball roll farthest on?
a. grass
b. sandpaper
c. wood
d. carpet
c. wood
What is Newton's Third Law?
Every action has an equal and opposite reaction.
A ball is dropped and the speed as it falls is recorded in the table. What would the speed of the ball be after 9 seconds?
90 m/s
What is Newton's Second Law?
Law of acceleration. Objects with less mass accelerate faster.
What is the best example of an unbalanced force?
a. a person standing in the middle of the floor
b. a person pushing up against a wall
c. a person pushing a cart on the floor
c. a person pushing a cart on the floor
A ball moves across the field toward the goal at a constant speed of 10mph. What about the ball is changing?
The position
What moves something at rest?
An unbalanced force
A bowling ball sitting motionless on a table exerts a downward force on the table. The force exerted by the table must be ________________
balanced/ equal to the force of the ball
which statement is true?
a. as an object falls freely, its speed decreases
b. as an object falls freely, its speed increases
c. as an object falls freely, its speed remains constant
d. as an object falls freely, its speed increases than decreases
b. as an object falls freely, its speed increases
Mr. Garner is pushing a box across the floor. He is pushing with 14N. Friction is acting on the box with 5N. What is the net force?
What is the law of inertia?
an object's tendency to resist a change in motion. The bigger an object is, the more inertia it has.
Describe what kind of Potential Energy each of these have
1&5= Chemical Potential Energy
2&4= Elastic Potential Energy
3&6= Gravitational Potential Energy
A student drops a bowling ball and a basketball at the same height at the same time, what will happen?
ball with 6g
Determine if these forces are contact or noncontact
1. Magnetic
2. Electrostatic
3. Mechanical
4. Spring
5. Gravitational
1. Non-Contact
2. Non-Contact
3. Contact
4. Contact
5. Non-Contact
how does the parachute effect the plane? Contact or non contact? Same or opposite direction?
The parachute slows the plane down with a contact force acting in the opposite direction (air resistance)
what are the students comparing in this lab?
The amount of frictional force acting on the block