Motion
This vector tells how fast something changes position.
What is Velocity
The force pulling objects toward Earth.
What is Gravity
Energy due to motion.
What is kinetic energy
Seatbelts help because of this concept.
What is Inertia
You jump inside a plane moving at constant speed. You land where.
What is the same spot
A car speeds up from 10 m/s to 20 m/s. What changed?
What is Acceleration
This force resists motion between surfaces.
What is Friction
Energy that’s stored because of height
What is Potential Energy
Why do basketball players bend their knees when landing?
What is Increase stopping time → reduce force
Which falls faster on the Moon, a bowling ball or feather?
What is same rate
This graph’s slope gives velocity.
What is Position vs. time graph
Newton’s First Law is also called this law.
What is Law of Inertia
This says energy cannot be created or destroyed.
What is Conservation of Energy
Why do astronauts float?
What is because they are in free fall
Can an object move while net force equals zero?
What is yes, at constant velocity
An object moving at constant velocity has this acceleration.
What is 0
Action reaction pairs come from this law.
what is Newton’s 3rd law
If velocity is doubled, kinetic energy changes by this factor.
What is 4
(DOUBLE POINTS!!)
Why do cars have crumple zones? (Crumple zones -designated sections of a vehicle intentionally designed to crush and deform during a crash)
What is Increase collision time and reduce force
If Earth suddenly doubled in mass, gravity would what
What is increase
A tennis ball is thrown straight up into the air and reaches its highest point. Its velocity is ___ but acceleration is ___.
What is Velocity = 0, acceleration = -10 (or −9.8) m/s²
A 67 kg object accelerates at 4 m/s². Force = ?
What is 268 Newtons
A roller coaster at the top of a hill has mostly this specific kind of energy.
Gravitational potential energy
Why does a tablecloth trick work?
What is inertia and low amounts of friction
You’re in space and throw a basketball forward. What happens to you?
What is you move backwards