G8-Mid-term Revision

Based on the previous scene, which of the following is considered a reference point to determine that the trees are moving?

• The person

• The building

• The plane

• The tree

One man pushes on the front of a cart while another man pushes on the back of the cart. The cart begins to move forward. Which of the following is NOT true about this situation?

• They are unbalanced

• The net force = zero

• The force on the front is weaker

• The force on the back is stronger

A cross-country runner runs 4 km in 30 minutes. What is the speed of this runner?

• 8km/h

• 2km/h

• 0.13km/h

• 120km/h

The acceleration is measured by:

• m/s

• N

• s/m

• m/s²

Calculate the acceleration

• 18m/s²

• 6m/s²

• 3m/s²

• 1m/s²

What is the instantaneous speed after 1 second

• 18m/s

• 6m/s

• 3m/s

• 1m/s

The net force = ......... N to the left

Gravity is .................... force between the ground and the objects.

The measuring unit of the force is .............

• Newton

• Joule

• Pascal

• meter

We can find the ...................... on a distance-versus-time graph by finding the slope of the line.