Grade 10 Physics Quiz 1

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

(a)  

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

would have been without gravity.

(a)  

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

…… m tangent to the surface.

(a)  

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.

(a)  

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)  

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

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

(a)  

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

and it will take about …….. minutes.

(a)  

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

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

(a)  

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

(a)  

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

(a)