During an investigation of Newton’s laws of motion, a student used the setup shown in Figure 1 below. The toy cart was released from rest at the top of the ramp. The clay person was not restrained to the cart. The clay person continued to move forward when the cart stopped at the wall as shown in Figure 2. Write a statement that explains what happened to the clay person during the investigation. Next, provide evidence supporting your claim about what happened to the motion of the clay person during the investigation. Finally, provide reasoning that connects your evidence to your claim.

(1.6 × 10-19)(5.0 × 106) = c × 10d identify the missing numbers below to show the result of multiplying the numbers.

Which statement correctly describes the phosphate ion, ? it is composed of one phosphorus atom and four oxygen atoms covalently bonded together, and there is a –3 charge distributed over the entire ion. it is composed of one phosphorus atom and four oxygen atoms covalently bonded together, and there is a –3 charge on the phosphorus atom. it is composed of one phosphorus atom and four oxygen atoms ionically bonded together, and there is a –3 charge distributed over the entire ion. it is composed of one phosphorus atom and four oxygen atoms ionically bonded together, and there is a –3 charge on the phosphorus atom.

Match the term to its description match term definition chemical energy a) internal energy caused by vibrations of atoms and molecules electrical energy b) electromagnetic energy that travels in waves radiant energy c) the movement of an electrical charge thermal energy d) potential energy stored in the bonds between atoms