Science biweekly 1: 4th grade

What is a force?

• A push or pull

• Speed or acceleration

• Gravity

What are the boys doing?

• Pushing

• Pulling

What are the kids doing?

• Pushing

• Pulling

If these girls pull with the same amount of force what will happen?

• The girl in yellow will win.

• The will not move at all.

• The girl in red will win.

• Both will fall down.

An object’s change in position refers to:

• Work

• Force

• Motion

Nothing changes its position, speed, or direction unless a force acts on it.

• True

• False

Motion refers to the weight of an object.

• True

• False

What pushes you up in the air when you jump and then pulls you back down to Earth?

• Gravity

• Energy

• Space

On the experiment “solar oven” what type of energy we used to cook?

• Electrical energy

• Sound energy

• Mechanical energy

• Heat energy