1. What can be inferred from the chart? A Visible light has fewer photons than infrared light B Ultraviolet light has the shortest wavelength C Most of the Sun’s energy is carried by infrared light. D Infrared light has the highest frequency. Which picture shows where the ball has the most kinetic energy and the least potential energy? 2/24/14

2. In level flight at constant speed, which pair of forces must be equal? A lift and drag B drag and weight C lift and weight D thrust and lift In which directions will this box move based on the forces being exerted on it? 2/25/14

3. You slide a box across a table. Which force would cause the box to stop sliding before it reaches the end of the table? a. Balanced forcesb. Gravity c. Frictiond. Inertia 2/26/14 ______ and ______are the two forces that keep Earth orbiting around the sun. A. Gravity and density B. Gravity and inertia C. Inertia and velocity D. Mass and distance

4. 2/27/14 Which ball has the most inertia? a. Ball 1b. Ball 2 c. ball 3 d. ball 4 As the distance between two objects decreases what happens to gravitational pull between them? a.The pull increases b.The pull decreases c.The pull stays the same d.No gravitational pull exists 15g 2g 4g 10g Ball 1 Ball 2 Ball 3 Ball 4