*Question*: The students were told that the net applied force from the engine was the same for each vehicle tested. Based on this information, which vehicle had the greatest acceleration (a = F/m)? OPTIONS:
- vehicle 1
- vehicle 2
- vehicle 3
- vehicle 4
*Answer*: vehicle 1

*Question*: Students in Ms. Barrett's science class visited a vehicle crash-test facility. The students observed four different types of vehicles crash against a guard-rail barrier at the end of a 45-meter track as shown in the diagram below. They recorded information about each crash test in the table below. {img:images/States2017/AZ/AZ_Gr8_2008_5.png} What was the velocity (v = d/t) of vehicle 4 when it crashed into the guard rail? OPTIONS:
- 0.2 meters per second west
- 0.3 meters per second west
- 3.0 meters per second west
- 5.0 meters per second west
*Answer*: 3.0 meters per second west

*Question*: Which of the following describes how a microwave oven heats food? OPTIONS:
- The oven's interior reflects heat onto the food.
- The oven's interior, like a lens, focuses heat onto the food.
- Water molecules in the food reflect energy from microwave radiation.
- Water molecules in the food absorb the energy of microwave radiation.
*Answer*:
Water molecules in the food absorb the energy of microwave radiation.