Grade 10 Physics Quiz 1

………………… is a projectile moving fast enough to fall continually around Earth rather than into it.

Throw a stone at any speed and one second later it would have fallen …….. meter below where it

would have been without gravity.

In the curvature of Earth, the surface drops a vertical distance of nearly……..m for every

…… m tangent to the surface.

A stone thrown fast enough to go a horizontal distance of ……m during the time (1 second)

it takes to fall ….. m, will orbit Earth.

The speeds of the bowling ball and a satellite are not affected by the force of gravity because there is no

…………….. component of the gravitational force.

A satellite in circular orbit around Earth is always moving ……………. to gravity and

…………….. to Earth’s surface at constant speed.

For a satellite close to Earth, the time for a complete orbit around Earth is called a ………………

and it will take about …….. minutes.

A satellite in orbit around Earth traces an oval-shaped path called an ………….

The two fixed points in an ellipse are called …….

The sum of the ………… and ………… of a satellite is constant at all points along an …… orbit

The ……….. is the point in a satellite’s orbit ………. from the center of Earth.