Lesson 1 Quiz: Forces and Motion

1. How can you determine the speed of a moving train?

• Divide the distance traveled by the time spent moving.
• Divide the time spent moving by the direction traveled.
• Multiply the distance traveled by the time spent moving.
• Multiply the kinetic energy by the distance traveled.

2. An object that is sitting still has _________ forces acting on it.

• balanced
• Unbalanced

3. A boy pushes on a box and moves it across the room. This is an example of ________

• balanced forces
• unbalanced forces
• potential energy
• chemical energy

4. Objects in motion tend to stay in motion because of the property of __________

• Inertia
• Gravity

5. Dana is the pitcher for her baseball team. What force causes the baseball to change direction when it is hit by the bat?

• The catcher’s force on the ball with his mitt.
• The batter’s force on the ball as he misses.
• The pitcher’s force on the ball as he throws.
• The batter’s force on the ball with the bat.

6. _________ describes when a moving object speeds up

• Acceleration
• Veolcity

7. If you drop a rock in a lake, the rock will slow down because the water exerts __________

• gravity
• less resistance
• drag forces
• velocity