Forces of Motion

What is matter?

• anything that has mass and takes up space

• anything that can be felt

• anything that can behave in many different ways

• anything that exist on Earth

Which object is in motion?

• A video of a car moving

• A ball rolling down the hill

• Bowling pins in a pyramid

• A potato on the table

What is a push or a pull acting on an object?

• force

• mass

• gravity

the combination (total) of all forces acting on an object

• net force

• speed

• unbalanced force

• balanced force

A ball moves at a constant speed of 1/2 meter per second. How much time does it take the ball to move 1 meter? (Speed = distance / time)

• 1 second

• 2 seconds

• 3 seconds

• 4 seconds

Which statement correctly identifies the object's motion between 2 seconds and 5 seconds on the graph?

• The object moved at a constant speed for 1 second, and then it stopped and remained stationary for 2 seconds.

• The object moved at a constant speed for 3 seconds, and then it stopped and remained stationary for 2 seconds.

• The object remained stationary for 1 second, and then it moved at a constant speed for 2 seconds.

• The object remained stationary for 3 seconds, and then it moved at a constant speed for 2 seconds.

The graph represents an object’s motion. Which statement describes this object’s motion?

• It moved at a constant speed for the entire 30 minutes.

• It remained stationary for the entire 30 minutes.

• It remained stationary for 10 minutes, and then it moved at a constant speed for the remaining 20 minutes.

• It moved at a constant speed for 10 minutes, and then it stopped and remained stationary for the remaining 20 minutes.

The graph below shows the motion of two objects. Which statement best describes the graph?

• Object P is moving faster than Object Q.

• Object Q is moving faster than Object P.

• Object P has traveled a greater distance than Object Q.

• Object Q has traveled a greater distance than Object P.

The graph shows a dog’s motion. When was the dog moving fastest?

• from 0 to 2 minutes

• from 2 to 4 minutes

• from 4 to 6 minutes

• from 6 to 10 minutes

The graph represents a motorcycle’s motion on a straight racetrack. What was the motorcycle’s average speed? (average speed = distance ÷ time)

• 1 meter per second

• 2 meters per second

• 100 meters per second

• 200 meters per second