SCIENCE GRADE 8

To calculate the speed of an object, what do you divide the distance the object travels by?

• Acceleration

• Time

• Velocity

• Energy

What refers to increasing speed, decreasing speed, or changing direction?

• Acceleration

• Velocity

• Energy

• Distance

What represents speed, that is, the rate that distance changes in relation to time?

• Change in velocity

• Slope

• Instantaneous speed

• Average speed

What depends on both the mass and speed of an object?

• Potential energy

• Kinetic energy

• Mechanical energy

• Gravitational potential energy

What is the total length of the actual path between two points?

• Velocity

• Displacement

• Distance

• Acceleration

What is the length and direction of a straight line between starting and ending points?

• Velocity

• Acceleration

• Distance

• Displacement

According to the law of conservation of energy, what cannot be created or destroyed?

• Kinetic energy

• Mechanical energy

• Elastic potential energy

• Work

What can you use to analyze the motion of an accelerating object?

• Speed-versus-time graph

• Distance-versus-time graph

• Velocity-versus-time graph

• Acceleration-versus-time graph

What is the slope of a distance-versus-time graph?

• Rise

• Run

• Weight

• Height

What does any object that rises or falls experience a change in?

• Kinetic and potential energy

• Mass and weight

• Velocity and acceleration

• Speed and distance