Physical Science Exam Review Part 1

Front

What property determines whether a substance is a solid or liquid at room temperature?

Back

Melting point is the property that determines whether a substance is a solid or liquid at room temperature.

Front

What happens to the acceleration of an object when its mass is decreased while a constant force is applied?

Back

The acceleration of the object increases when its mass is decreased.

Front

If two balls are pushed with the same force, which ball will have greater acceleration if one is lighter?

Back

The lighter ball (Ball A) will have a greater acceleration than the heavier ball (Ball B).

Front

What happens to the potential energy of an object as it is lifted higher above the ground?

Back

The potential energy of the object increases as it is lifted higher above the ground.

Front

What does an arrow in a diagram typically indicate when discussing objects?

Back

The arrow in a diagram usually indicates the volume of the object.

Front

Define 'acceleration' in the context of physical science.

Back

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

Front

What is the relationship between force, mass, and acceleration as described by Newton's second law?

Back

Newton's second law states that Force = Mass x Acceleration (F = ma).

Front

What is kinetic energy and how is it calculated?

Back

Kinetic energy is the energy of an object in motion, calculated using the formula KE = 1/2 mv², where m is mass and v is velocity.

Front

Explain the concept of inertia.

Back

Inertia is the tendency of an object to resist changes in its state of motion; it is directly related to the mass of the object.

Front

What is the difference between potential energy and kinetic energy?

Back

Potential energy is stored energy based on an object's position, while kinetic energy is the energy of an object in motion.