Force and Motion

Front

What is net force?

Back

The net force is the total force acting on an object after all the individual forces are combined. It determines the object's acceleration.

Front

If a person exerts a force of 45 N to the right and another person exerts a force of 32 N to the left, what is the net force?

Back

The net force is 13 N to the right.

Front

What happens to passengers in a car that suddenly stops?

Back

Passengers continue to move in a straight line and will slide forward in the car due to inertia.

Front

What is average speed?

Back

Average speed is the total distance traveled divided by the total time taken.

Front

If a car travels 90 kilometers in 1 hour, what is its average speed?

Back

The average speed is 90 kilometers/hour.

Front

What is weight?

Back

Weight is the force of gravity acting on an object, calculated as mass times the acceleration due to gravity (W = m * g).

Front

What is the difference between mass and weight?

Back

Mass is the amount of matter in an object, while weight is the force exerted by gravity on that mass.

Front

What is a distance/time graph?

Back

A distance/time graph shows how distance changes over time, with distance on the vertical axis and time on the horizontal axis.

Front

What units are typically used on the vertical axis of a distance/time graph?

Back

Meters.

Front

What is inertia?

Back

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