NC Check-ins Physical Science

Front

What are the two forces acting in the picture?

Back

Friction and Gravity

Front

What is acceleration?

Back

Acceleration is increasing speed, decreasing speed, changing direction, or all of the above.

Front

How can a piece of paper undergo a chemical change?

Back

By burning the paper with fire.

Front

What graph represents a car moving at a constant speed in a forward direction?

Back

A straight line graph with a positive slope.

Front

Which is harder to stop: an 18 wheeler or a motorcycle?

Back

An 18 wheeler is harder to stop.

Front

What is friction?

Back

Friction is a force that opposes motion between two surfaces in contact.

Front

What is gravity?

Back

Gravity is the force that attracts two bodies towards each other, commonly experienced as the force that pulls objects towards the Earth.

Front

What is a chemical change?

Back

A chemical change is a process where substances combine or break apart to form new substances.

Front

What is the difference between speed and velocity?

Back

Speed is how fast an object is moving, while velocity includes both speed and direction.

Front

What is inertia?

Back

Inertia is the tendency of an object to resist changes in its state of motion.