MOTION
What is the formula for density?
mass/volume
What is the formula for velocity?
Velocity = Displacement/ Time with a direction
This type of energy is considered stored energy.
Potential energy
An object that is in free fall seems to be a) not moving b) slowed by air resistance c) speeded up by air resistance d) weightless
a) not moving
Inertia varies depending on a) velocity b) motion c) mass d) force
c) mass
What is the formula for potential energy?
E = mgh
A ____________ is a push or pull that causes an object to change its motion. a) force b) change c) kinetic d) compound
a) force
When you kick a soccer ball it has __________ energy. a) kinetic b) potential c) mechanical d) chemical
a) kinetic
The unit of momentum is a) kg x m b) kg x m/s c) kg x m/s 2 d) m/s 2
b) kg x m/s
The SI unit that is used to measure time is the a) second b) meter c) kelvin d) kilogram
a) second
Formula for moment?
M = F x d
Force x distance
Energy is the ability to do ________. a) nothing b) potential c) inertia d) work
d) work
A ball being dropped and bouncing is a good example of this form of energy.
Kinetic energy
What is Newton's Second Law of Motion
F = M * A Force = Mass x Acceleration
What is the formula for speed?
Speed = Distance / Time
Formula for momentum?
p = m x v
mass x velocity
A ball held at the top of a slide has ________________. a) potential energy b) kinetic energy c) work d) chemical energy
a) potential energy
This is where a ball rolling down a hill has the most potential energy.
What is the top of the hill?
The statement "to every action there is an equal and opposite reaction" is ______. a) The law of conservation of momentum b) Newton's first law of motion c) Newton's second law of motion d) Newton's third law of motion
d) Newton's third law of motion
3 m/s north is an example of a(n) a) position b) speed c) velocity d) acceleration
b) speed
Formula for pressure?
P = F/A
Force/ Area
_____________ is the tendency of an object to keep moving or stay at rest. a) friction b) force c) inertia d) gravity
c) inertia
List at least 3 types of energy used by a TV.
What is light energy, electrical energy, thermal energy, sound energy
When a force is exerted on a box, an equal and opposite force is exerted by the box. These forces are called ____ forces. a) action-reaction b) centripetal c) frictional d) gravitational
a) action-reaction
A porcupine moved toward a pond at a speed of 5 m/s. It took him 8 seconds. What was the distance he traveled?
40 meters