Physics Challenge

What is the formula to calculate speed?

• Speed = Distance * Time

• Speed = Distance / Time

• Speed = Distance - Time

• Speed = Time / Distance

Define potential energy.

• The energy possessed by an object due to its position or state.

• The energy possessed by an object due to its color

• The energy possessed by an object due to its speed

• The energy possessed by an object due to its temperature

What is the SI unit of force?

• Meter

• Joule

• Kilogram

• Newton (N)

Explain the concept of reflection of light.

• Reflection of light is the process where light disappears upon contact with a surface.

• Reflection of light is the process where light is absorbed by a surface.

• Reflection of light is the process where light changes color when hitting a surface.

• Reflection of light is the process where light bounces off a surface.

What is the formula to calculate acceleration?

• acceleration = (final velocity * initial velocity) / time

• acceleration = (final velocity - initial velocity) / time

• acceleration = (final velocity - initial velocity) * time

• acceleration = (final velocity + initial velocity) / time

Describe the law of conservation of energy.

• Energy can neither be created nor destroyed, only transformed.

• Energy can be created but not destroyed

• Energy can only be transformed into matter

• Energy can be destroyed but not created

What is the unit of measurement for work?

• newtons

• volts

• watts

• joules (J)

What is Newton's third law of motion?

• The reaction is always greater than the action.

• For every action, there is no reaction.

• Every action has an unequal and opposite reaction.

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

Explain the difference between kinetic and potential energy.

• Kinetic energy is stored energy, while potential energy is energy in motion.

• Kinetic energy is the energy of an object at rest, while potential energy is the energy of an object in motion.

• Kinetic energy is only present in living organisms, while potential energy is only present in non-living objects.

• Kinetic energy is energy in motion, while potential energy is stored energy.

Define inertia.

• The speed of an object in motion

• The force of gravity acting on an object

• The ability of an object to float in water

• The resistance of any physical object to any change in its state of motion.