Grade 10 Mechanics

Speed has...

• both direction and magnitude.

• only direction and not magnitude.

• only magnitude and no direction.

• neither direction nor magnitude.

Which one of the following is correct about acceleration:

• It can be found by speed only without direction.

• It is the rate of velocity over time.

• It is a scalar quantity.

• It is equal to velocity.

Which one of the following is called alpha?

•  $\beta$  

•  $\alpha$  

•  $\theta$  

•  $\phi$  

Choose the answers which are correct about distance:

• Distance should have direction.

• Distance should not have direction.

• Distance must can be negative.

• Distance cannot be negative.

Karabo is running towards east in a straight line with the same speed. Which statements are correct:

• Karabo has a velocity that is the same as the speed.

• Karabo is accelerating.

• Karabo is having velocity that is not the same as the speed.

• Karabo is not accelerating.

Which statements are false about energy?

• Energy can be created.

• Energy cannot be destroyed.

• Energy can be transferred from one form to another.

• Energy in the universe is not constant, it keeps on increasing and decreasing as it is created and destroyed.

What letter is most closer to A when regarding displacement(The letter that is closest to A)? Use inspection...

• F

• B

• C

• E