Physics Concepts: Collisions, Waves, Electrostatics, and Electromagnetic Radiation Quiz

In an elastic collision, what is specifically conserved?

• Only momentum
• Only kinetic energy
• Both momentum and kinetic energy
• Neither momentum nor kinetic energy

If a 0.16 kg ball moving at 0.50 m/s collides with a stationary 0.10 kg ball, what is the initial momentum of the first ball?

• 0.03 kg·m/s
• 0.08 kg·m/s
• 0.05 kg·m/s
• 0.16 kg·m/s

What represents the maximum displacement from the equilibrium position in a wave?

• Wavelength
• Frequency
• Amplitude
• Period

Which electromagnetic waves have longer wavelengths?

• X-rays
• Gamma rays
• Radio waves
• Ultraviolet rays

What happens when like charges interact?

• They attract
• They repel
• They neutralize
• They combine

How is 1 Volt defined?

• 1 Watt per Ampere
• 1 Joule per Coulomb
• 1 Newton per Kilogram
• 1 Ampere per Ohm

What characterizes radioactive decay?

• Predictable timing
• Controllable process
• Random process
• Instantaneous transformation

What determines the rate of radioactive decay?

• Container size
• Temperature
• Half-life
• Pressure

In a transformer, voltage transformation depends on what?

• Electrical resistance
• Turns ratio
• Wire thickness
• Material conductivity

What material can help reduce radiation exposure?

• Aluminum
• Plastic
• Lead
• Wood