Unit 1 Lesson 1: Forces and Motion

Front

How can you determine the speed of a moving train?

Back

Divide the distance traveled by the time spent moving.

Front

An object that is sitting still has___________________ forces acting on it. Options: balanced, unbalanced

Back

balanced

Front

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

Back

unbalanced forces

Front

Objects in motion tend to stay in motion because of the property of____________ .

Back

inertia

Front

What force causes the baseball to change direction when it is hit by the bat?

Back

The batter’s force on the ball with the bat.

Front

The distance traveled in an amount of time is called _____________.

Back

Speed

Front

______________ describes when a moving object speeds up.

Back

Acceleration

Front

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

Back

drag forces

Front

What causes heat when rubbing your hands together?

Back

friction

Front

Everything in the universe, including yourself is in ____________.

Back

motion