Question

jordan and jason are riding their bikes on the street to school, going the same speed. you would be accurate if you said that he is moving by using which of the following as a reference point? mark all that apply.
bike
jason
school
street

Explanation:

To determine a reference point for motion, we need an object that is stationary relative to the moving object (Jordan) or has a different motion.

• Bike: Jordan is on the bike, so relative to the bike, he is not moving (same speed as bike, so no relative motion). So bike is not a valid reference point to say he is moving.
• Jason: Both Jordan and Jason are moving at the same speed. So relative to Jason, Jordan is not moving (no change in position). So Jason is not a valid reference point.
• School: The school is stationary (assuming it's a fixed location). As Jordan rides towards school, his position relative to the school changes. So using school as a reference point, he is moving.
• Street: The street (ground) is stationary. As Jordan rides on the street, his position relative to the street changes. So using the street as a reference point, he is moving.

Answer:

C. school, D. street