Physics Challenge

What is the SI unit of force?

• Newton (N)

• Volt

• Joule

• Watt

What is the formula for calculating acceleration?

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

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

• acceleration = final velocity / time

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

Explain the concept of inertia.

• Inertia is the same as gravity.

• The concept of inertia refers to the tendency of objects to resist changes in their motion.

• Inertia is the force that causes objects to move.

• Inertia is only applicable to objects in space.

Define momentum in physics.

• Difference of mass and velocity

• Product of mass and velocity

• Sum of mass and velocity

• Division of mass and velocity

What is the law of conservation of energy?

• Energy can be created and destroyed at will

• Energy conservation only applies to mechanical energy

• Energy is only conserved in closed systems

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

Describe the difference between speed and velocity.

• Speed and velocity have no relation to each other.

• Speed and velocity are the same thing.

• Speed is a vector, velocity is scalar.

• Speed is scalar, velocity is vector.

What is the formula for calculating work in physics?

• Work = Force x Distance

• Work = Mass x Acceleration

• Work = Velocity x Time

• Work = Energy / Distance

Explain the concept of buoyancy.

• Buoyancy is the downward force exerted by a fluid on an immersed object.

• Buoyancy is the upward force exerted by a fluid that opposes the weight of an immersed object.

• Buoyancy is the resistance of a fluid to the motion of an object.

• Buoyancy is the force that causes objects to sink in a fluid.

What is the relationship between frequency and wavelength in physics?

• Direct

• Proportional

• Constant

• Inverse

Define the term 'kinetic energy'.

• The energy an object possesses due to its motion.

• The temperature of an object

• The energy stored in an object at rest

• The force applied to an object