What is a push or pull acting on an object?
What is force?
What term describes a change in an object's position?
What is motion?
What is the force that opposes motion between surfaces that are touching?
What is friction?
What type of force is applied when you kick a soccer ball?
What is applied force?
What tells you how fast or slow an object is moving?
What is speed?
You are standing still on the floor. What type of friction helps keep your feet from sliding?
What is static friction?
This force is an attraction between things that have mass.
What is gravity?
What measurement describes both how fast an object moves AND its direction?
What is velocity?
A book slides across a desk. What type of friction is acting on the book?
What is sliding friction?
A student pushes a box across the floor, but the box resists moving because of a force between the surfaces. What force is acting against the motion?
What is friction?
A car's velocity changes from 20 mph to 40 mph. What has happened to the car's motion?
What is acceleration?
A skateboard rolls across the sidewalk. What type of friction is acting between the wheels and the sidewalk?
What is rolling friction?
Earth pulls a dropped pencil toward the ground. What force causes the pencil to fall?
What is gravity?
Two students watch the same car. One student is standing on the sidewalk while the other is riding in another car. They disagree about whether the car is moving. What concept explains why their observations can be different?
What is a frame of reference?
A skydiver moves through the air and experiences a force that opposes their motion. What type of friction is this?
What is fluid friction?