Semester 1 review - 8th 2024

Front

What is the sum of forces acting on a particle or body?

Back

Net force

Front

Which of the following is the best example of something that has kinetic energy? a. a car parked on a steep hill, b. a tennis ball rolling across the court, c. a picture hanging on the wall, d. a piece of coal before it's burned

Back

b. a tennis ball rolling across the court

Front

What moon phase is marked with an X in the diagram?

Back

Waxing gibbous

Front

What does Newton's Third Law state?

Back

For every action, there is an equal and opposite reaction.

Front

If Emma is running for 8 minutes at 2 miles/min, how far did she run?

Back

16 miles

Front

What is the definition of kinetic energy?

Back

The energy an object possesses due to its motion.

Front

What is the formula for calculating net force?

Back

Net force = mass × acceleration (F = ma)

Front

What is the difference between balanced and unbalanced forces?

Back

Balanced forces do not change an object's motion, while unbalanced forces cause an object to accelerate.

Front

What is the definition of potential energy?

Back

The energy stored in an object due to its position or state.

Front

What is the formula for calculating speed?

Back

Speed = distance / time