Physical Science Study Helper

Front

What is the definition of a force?

Back

a push or pull

Front

Which of the following does every force have?

Back

strength and direction

Front

When balanced forces act on an object, they make the object move.

Back

False

Front

Ted pulls Alice in a wagon while Ginger pushes. Evan walks beside them. Which of them is not placing a force on the wagon?

Back

Evan

Front

Alicia and Samantha are playing tug-o-war, but neither is moving. What are they demonstrating?

Back

balanced forces

Front

Isaac is leaning against a small apple tree. The tree bends slightly when his back pushes it. What force prevents Isaac from falling over backwards?

Back

The force of Isaac pushing the tree is balanced by the tree pushing back on Isaac.

Front

Which set of magnetic poles will attract each other?

Back

N+S

North and South

Front

Nigel discovered he could stick a balloon to a wall after rubbing it on a wool sweater. What is the most likely reason this is happening?

Back

static electricity

Front

What can you conclude about two balloons that seem to push away from each other without touching?

Back

They have the same charge.

Front

What happens when unbalanced forces act on an object?

Back

The object will change its motion (speed up, slow down, or change direction).