Physics Exam

Front

Convert 62 mph to m/s using the conversion factor 1 m/s = 2.23 mph.

Back

28 m/s

Front

What is the result of rounding 65.645 to one decimal place?

Back

65.6

Front

If two forces act in the same direction, what do you do with their magnitudes?

Back

Add the magnitudes.

Front

What type of collision occurs when two objects bounce off each other?

Back

Elastic collision.

Front

Which vehicle has more momentum if both are traveling at the same speed: a small Toyota Camry or a large Cadillac Escalade?

Back

Cadillac Escalade.

Front

What is the formula for calculating momentum?

Back

Momentum = mass × velocity.

Front

Define kinetic energy.

Back

Kinetic energy is the energy of an object due to its motion, calculated as KE = 1/2 mv².

Front

What is the principle of conservation of momentum?

Back

In a closed system, the total momentum before an event is equal to the total momentum after the event.

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

How do you calculate the net force when two forces act in opposite directions?

Back

Subtract the smaller force from the larger force.