1. Materials undergoing stress/strain which obey Hooke’s Law A.are experiencing elastic deformation B.are experiencing plastic deformation. C.Are experiencing elastic deformation only up to a certain stress/strain. D.are experiencing plastic deformation only up to a certain stress/strain. E.possibly C or D.

2. A block of mass m = 1.3 kg is vibrating on a spring with a force constant of k = 194 N/m. When the instantaneous speed of the block is v = 0.55 m/s, the block is 0.30 m away from equilibrium. Find the maximum speed of the block during the vibrations. RankResponses 1 2 3 4 5 6

3. A block of mass m = 1.3 kg is vibrating on a spring with a force constant of k = 194 N/m. When the instantaneous speed of the block is v = 0.55 m/s, the block is 0.30 m away from equilibrium. Find the amplitude of vibrations. RankResponses 1 2 3 4 5 6

4. A block of mass m = 0.75 kg is connected to a spring. The block is in simple harmonic motion during which its maximum velocity is v max = 1.2 m/s and its maximum acceleration is a max = 0.36 m/s 2. Find the total energy of the system. RankResponses 1 2 3 4 5 6

5. A block of mass m = 0.75 kg is connected to a spring. The block is in simple harmonic motion during which its maximum velocity is v max = 1.2 m/s and its maximum acceleration is a max = 0.36 m/s 2. Find the amplitude of the oscillations. RankResponses 1 2 3 4 5 6

6. A block of mass m = 0.75 kg is connected to a spring. The block is in simple harmonic motion during which its maximum velocity is v max = 1.2 m/s and its maximum acceleration is a max = 0.36 m/s 2. Find the period of oscillations. RankResponses 1 2 3 4 5 6

7. A block of mass m = 0.75 kg is connected to a spring. The block is in simple harmonic motion during which its maximum velocity is v max = 1.2 m/s and its maximum acceleration is a max = 0.36 m/s 2. How far is the block from equilibrium at the moment when its kinetic energy is equal to its potential energy? Assume that potential energy is zero at equilibrium. RankResponses 1 2 3 4 5 6