Gravitational Force HA

What is gravity?

• A force that pushes things up to the sky.

• A force that pulls things down to Earth.

• A force that makes things float.

Without gravity, what would happen to us?

• We would still be able to stand on the ground.

• We would not float away.

• We would float away.

When you throw an apple, a bowling ball and a feather up in the air, they will all .....

• Fall down

• Stay up

• Go sideways

Who was the scientist that discovered gravity?

• Sir Isaac Nexton

• Sir Isaac Nepton

• Sir Isaac Newton

What happened when the scientist was sitting under a tree?

• He ate an apple.

• An apple fell on his head.

• Someone threw an apple at him.

The scientist said that, .......

• What goes up, must stay up

• What goes up, must fall down.

• What goes up, must go sideways.

What pulls a skier down a mountain?

• Gravitational force

• Frictional force

• Magnetic force

A car on top of a hill will go _________ because of Earth's _____________.

• down the hill / elastic force

• up the hill / gravitational pull

• down the hill / gravitational pull

A pencil on Sam's desk rolls from one end to the other end and falls. What is the effect of gravity on the falling pencil?

• It will have no effect.

• It will pull the pencil back onto the desk.

• It will cause the pencil to fall to the ground.

David placed a car at the top of a ramp. Then he let go. Which picture most likely shows the final position of the car after it had stopped?

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