Physics Semester 1 Review

Front

What is the vertical component of a vector if the horizontal component is 12 and the vector makes an angle of 45 degrees with the horizontal?

Back

16

Front

How do you calculate average speed?

Back

Average speed = Total distance / Total time

Front

At what point is the velocity of a projectile entirely horizontal?

Back

When it is at the top of its path

Front

True or False: Weight and mass are the same thing.

Back

False

Front

What is the force on a body due to the gravitational attraction of another body?

Back

Weight

Front

Define vector.

Back

A quantity that has both magnitude and direction.

Front

What is the formula for calculating weight?

Back

Weight = mass × gravitational acceleration (W = mg)

Front

What is the difference between speed and velocity?

Back

Speed is a scalar quantity (magnitude only), while velocity is a vector quantity (magnitude and direction).

Front

What is gravitational acceleration on Earth?

Back

Approximately 9.81 m/s².

Front

If a car travels 240 km in 4 hours, what is its average speed?

Back

60 km/h.