Science Quiz

To make sure your measurements are clear, it is important to use appropriate units. Which of these is a unit of distance?

• gram

• kilometer

• liter

• second

Cars, bicycles, and people can all be objects in motion. What is it about an object in motion that is changing all the time?

• acceleration

• position

• speed

• velocity

Friction can affect an object's motion. What is friction?

• a unit of the metric system

• a unit that is a measure of force

• energy in the form of pushing or pulling

• a force that opposes motion between two surfaces that are touching

Forces can affect the rate of an object's motion. Which of these is a force?

• acceleration

• gravity

• speed

• velocity

Jareem is riding his bike. He travels 30 km. It took him 3 hr. If Jareem was traveling at the same speed, how fast was he traveling?

• 3 km/hr

• 10 km/hr

• 30 km/hr

• 90 km/hr