PHY120 Final Flashcard

Front

What is the correct equation for acceleration?

Back

a = v_f - v_i / t

Front

When a ball is thrown upwards and caught when it comes back down, what is the speed of the ball when caught?

Back

The same as the speed it had when thrown upwards.

Front

What type of simple machines are a lever and a wedge?

Back

They are examples of simple machines used to gain mechanical advantage.

Front

If an object has twice as much mass as another, what else does it have twice as much of?

Back

Weight.

Front

In an experiment testing how watering affects plant growth, what is the INDEPENDENT VARIABLE?

Back

The amount you water each plant.

Front

Define acceleration in physics.

Back

Acceleration is the rate of change of velocity of an object with respect to time.

Front

What is the formula for calculating weight?

Back

Weight = mass × gravitational acceleration (W = m × g).

Front

Explain the concept of independent and dependent variables in an experiment.

Back

The independent variable is manipulated to observe its effect on the dependent variable, which is measured.

Front

What is the principle of conservation of energy?

Back

Energy cannot be created or destroyed, only transformed from one form to another.

Front

What is a lever and how does it work?

Back

A lever is a simple machine that amplifies an input force to lift or move loads.