Physics Quiz Grade 7

Which list contains only vector quantities?

• acceleration, displacement, mass

• acceleration, distance, speed

• displacement, velocity, acceleration

• distance, mass, speed

Displacement is the change in an object's position moving along the x-axis from x to x. Which initial and final coordinates values result in the largest displacement?

• A

• B

• C

• D

A toy car rolls down a ramp and hits a wall. The graph shows its velocity changes with time. The distance travelled is shown by ...

• The area under the line

• The horizontal part of the line

• The sloping line at the end

• The sloping line at the start

A dog moves from point A to point B to point C, then back to point B along the line shown in the figure below. What is the dog's distance from initial point?

• 16 m

• 5 m

• 6 m

• 10 m

The diagram shows the results of the ticker timer tape of an object moving at a constant speed. The ticker timer vibrates regularly, making 50 dots per second. What is the object's speed?

• 2 cm/s

• 125 cm/s

• 100 cm/s

• 200 m/s

A bicycle route is shown below. The Bicycle need 2 hours to finish until the initial point. Calculate the average speed of the bicycle!

• 5 km/jam

• 5,5 km/jam

• 11 km/jam

• 22 km/jam

Two cars A and B are approaching each other head-on with speeds of 20 m/s and 15 m/s respectively. When they were 600 m away, car B stopped for 2 seconds and then moved at its original speed. When will they finally collide?

When will they finally collide?

• 13 s

• 14 s

• 15 s

• 16 s

Which of these graphs represents an object on rest condition?

• A

• B

• C

• D

Which section shows the constant speed?

• A

• B

• C

• D