Vocabulary
What is the definition of force?
A push or pull
What is Newton's 2nd Law of Motion?
F=MxA
How much force is needed to move a mass of 66kg at 2m/sec?
132N (Newtons)
What are the 2 things that determine velocity?
Speed and direction
A force that causes objects to slow down or stop when surfaces touch is called?
Friction
Driving a car then putting your foot on the brake to stop it is an example of which Law of Motion?
Newton's first Law of Motion
What is the acceleration of a 50kg object moved with a force of 500N?
10 (m/s^2)
What is the formula for speed?
Speed=Distance/Time
Define Gravity.
An attractive force that pulls objects down (toward the center of the Earth).
The tendency for objects to resist a change in motion is called...
Inertia
A beetle travels at a speed of 9cm/s. If it traveled a distance of 108cm before being caught in a jar. How long did it take to be caught?
12s (seconds)
What is the energy of motion called?
Kinetic Energy
The state in which an object's distance from another is changing is called...
Motion
What is Newton's 3rd Law of Motion?
For every action, there is an equal and opposite reaction.
A whale swims 8m/s for 17 seconds. What distance did it travel?
136m (meters)
Things that roll have less _____ than things that don't
Friction
A place or object used to determine if something is in motion is called...
Reference Point
What is Newton's 1st Law of Motion?
An object in motion will stay in motion, and an object at rest will stay at rest until an outside force acts upon it.
Carol is 135 miles away from the store. If her speed was 45mph, how long did it take her to get there?
3hrs (*hours)
What is the formula for acceleration?
A=Force/Mass or Initial-Final speed/Time