Force, a vector having size and direction, is measured in this unit.
What is a Newton?
100
A gravitational pull exists between any two objects that have this.
What is mass?
200
Two factors that determine an object's gravitational potential energy.
What are mass and distance from the ground?
200
A man walked 80 miles in 4 days to achieve this average speed.
What is 20 miles per day?
200
The tendency to resist change in motion. Another name for Newton's 1st law of motion.
What is inertia?
200
These two factors affect gravitational force.
What are mass and distance?
300
The two factors that determine the amount of kinetic energy a moving object possesses.
What are mass and speed?
300
Two pieces of information you need to describe an object's location.
What are position and reference point?
300
4 kids are playing tug-of-war. 2 kids are pulling left at 90 N, and 2 kids are pulling right at 120 N. The net force is ___.
What is 30 N to the right?
300
An elliptical path one object takes around another object.
What is an orbit?
400
The combination of potential and kinetic energy.
What is mechanical energy?
400
A green car and blue car were racing. When their speed was put on a graph, the green car's speed was represented by a steep line, and the blue car's speed was a flatter line. Which car had a faster speed?
What is the green car?
400
Two common forces. One is a contact force that involves two objects rubbing together. The other acts at a distance and pulls objects down.
What are friction and gravity?
400
The measure of the force of gravity between Earth and any given object
What is weight?
500
Two types of potential energy an object can possess.
What are gravitational potential energy and chemical potential energy?
500
A track sprinter ran a 100 m race 3 times. His times were 15 seconds, 17 seconds, and 18 seconds. What was his average speed?
What is 6 m/s?
500
The formula for calculating force. Newton's 2nd law of motion.
What is Mass x Acceleration?
500
A spacecraft and its contents in orbit are in this state.
There is no outside force acting on it apart from gravity.